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Radio System - Except Cabriolet Audi A4 B6

Entertainment Systems ~5048 words

General information

CAUTIONBefore beginning repairs on the electrical system
  1. Obtain anti-theft radio security code if necessary.
  2. Switch the ignition off.
  3. Disconnect battery Ground (GND) strap.
  4. On vehicles equipped with Audi Telematics by OnStar(R), switch-off the emergency (back-up) battery for the Telematic/Telephone Control Module prior to disconnecting vehicle battery. Use VAS 5051 Vehicle Diagnostic, Testing and Information System in mode "Guided Fault Finding". See «TELEMATICS»(/audi/a4/b6-2000-2006/remont/communication-devices/#navigation-system-except-cabriolet) .
  5. After reconnecting vehicle battery, re-code anti-theft radio if necessary and check operation. Also check operation of clock and power windows according to Repair Manual and/or Owner's Manual.
  6. After reconnecting vehicle battery on vehicles equipped with Audi Telematics by OnStar(R), switch-on the emergency (back-up) battery for the Telematic/Telephone Control Module. Use VAS 5051 Vehicle Diagnostic, Testing and Information System in mode "Guided Fault Finding". See «TELEMATICS»(/audi/a4/b6-2000-2006/remont/communication-devices/#navigation-system-except-cabriolet) .

Note. Further measures after reconnecting the voltage supply: See PROCEDURE AFTER INTERRUPTION OF VOLTAGE SUPPLY (1.8L), or PROCEDURE FOLLOWING INTERRUPTION OF VOLTAGE SUPPLY (3.0L).

Before troubleshooting or servicing, technicians must be familiar with the functions and operation specifics of the applicable standard or optional radio system. Always read the radio owner's manual and review all radio, tape player and CD player/changer functions.

Note. When retrofitting, repairing or troubleshooting, see System Wiring Diagrams . Radio installation instructions in vehicle's owner's manual. For detailed instructions (e.g. removing and installing trim panels): See INTERIOR TRIM - EXCEPT CABRIOLET . Wherever possible, only genuine Audi parts should be used. Only then can trouble-free installation and optimal reception be guaranteed. All radio systems have anti-theft coding. All Audi radio systems are encoded for the instrument cluster in the convenience coding. It is not necessary to enter the code when disconnecting and reconnecting the power supply, removing and installing the same radio or removing and installing the same instrument cluster.

Contact Corrosion

To minimize contact corrosion, only use approved fasteners (screws, nuts, bolts, washers etc.)

Where applicable, fasteners may have a special surface coating recognizable by a greenish color.

Coated fasteners must also be stored separately.

On Board Diagnostic (OBD)

Radio systems have extensive On Board Diagnostic (OBD) capabilities.

The radio unit has a Diagnostic Trouble Code (DTC) memory. If a malfunction occurs in one of the components or wires which is monitored by the system, a record of the type of malfunction is stored in DTC memory. Use VAS 5051 Vehicle Diagnostic, Testing and Information System in mode "Guided Fault Finding".

Retrofitting of radio systems

  1. The electrical connections on the factory-installed radio wiring harness are designed for genuine Audi radios.
  2. Radios with different types of electrical connections must be installed using adapter wires.
  3. When connecting the vehicle speed sensor signal wire (on radios with the GALA function), take particular care to avoid short circuits, which could result in vehicle malfunctions (e.g. in the engine management system).
  4. Vehicle malfunctions may also occur if the vehicle speed sensor signal wire is connected to radios supplied by other manufacturers.
  5. When other radio units are installed it can have an effect on the antenna amplifier, since the original Audi radio units have a remotely driven antenna (the voltage supply of the antenna amplifier is driven via a center wire of the high frequency cable). Use a remotely driven adaptor => parts catalog (vendor: Votex).

CD equipment, retrofitting

The wiring set for the CD changer unit is in the vehicle during production. The connecting cable can only be used with original Audi CD changers.

Transport mode, deactivating

"Symphony" radio systems are disabled (switched-off) when Transport Mode is activated. This is necessary when vehicles are transported over long distances or stored for longer periods of time.

Audi A4 vehicles from 2002 are initially delivered to dealerships with radio system in Transport Mode, and must be deactivated before delivery to the customer.

Use VAS 5051 Vehicle Diagnostic, Testing and Information System in mode "Guided Fault Finding".

Further information

"Concert II" and "Symphony II" radio systems (Sedan), component overview

The following list pertains to Fig.1 .

  1. CD Changer Unit -R41- Optional In glove compartment Removing and installing, see «CD CHANGER UNIT -R41-, REMOVING AND INSTALLING»(/audi/a4/b6-2000-2006/remont/entertainment-systems/#radio-system-except-cabriolet) Check wiring, see «CHECKING WIRING BETWEEN RADIO AND CD CHANGER»(/audi/a4/b6-2000-2006/remont/entertainment-systems/#radio-system-except-cabriolet__checking-wiring-between-radio-and-cd)
  2. Center Mid/High Range Loudspeaker -R158- In instrument panel Removing and installing, see «CENTER MID/HIGH RANGE LOUDSPEAKER -R158-, REMOVING»(/audi/a4/b6-2000-2006/remont/entertainment-systems/#radio-system-except-cabriolet)
  3. Radio -R- In instrument panel, center Removing and installing "Concert II" radio, see «"CONCERT II" RADIO UNIT, REMOVING AND INSTALLING»(/audi/a4/b6-2000-2006/remont/entertainment-systems/#radio-system-except-cabriolet) Removing and installing "Symphony II" radio, see «"SYMPHONY II" RADIO UNIT, REMOVING AND INSTALLING»(/audi/a4/b6-2000-2006/remont/entertainment-systems/#radio-system-except-cabriolet)
  4. Amplifier -R12- (for rear loudspeakers or BOSE(R) power amplifier with "BOSE(R) sound system") In right rear luggage compartment behind side trim Removing and installing amplifier for rear loudspeakers, see «AMPLIFIER -R12- FOR REAR LOUDSPEAKERS (SEDAN), REMOVING AND INSTALLING»(/audi/a4/b6-2000-2006/remont/entertainment-systems/#radio-system-except-cabriolet) Removing and installing BOSE(R) power amplifier, see «AMPLIFIER -R12- BOSE (R) POWER AMPLIFIER (SEDAN), REMOVING AND INSTALLING»(/audi/a4/b6-2000-2006/remont/entertainment-systems/#radio-system-except-cabriolet)
  5. Bass Loudspeaker -R100- Below rear shelf Removing and installing, see «BASS LOUDSPEAKER -R100- (SEDAN), REMOVING AND INSTALLING»(/audi/a4/b6-2000-2006/remont/entertainment-systems/#radio-system-except-cabriolet)
  6. Antenna Selection Control Module -J515- Under rear headliner trim Removing and installing, see «ANTENNA SELECTION CONTROL MODULE -J515- (SEDAN), REMOVING AND INSTALLING»(/audi/a4/b6-2000-2006/remont/entertainment-systems/#radio-system-except-cabriolet)
  7. Rear Midrange Speakers -R34- &-R35- In upper rear door trim Removing and installing, see «REAR MIDRANGE SPEAKERS -R34 & -R35-, REMOVING AND INSTALLING»(/audi/a4/b6-2000-2006/remont/entertainment-systems/#radio-system-except-cabriolet)
  8. Rear Bass Speakers -R15- &-R17- In lower rear door trim Removing and installing, see «REAR BASS SPEAKERS -R15- & -R17-, REMOVING AND INSTALLING»(/audi/a4/b6-2000-2006/remont/entertainment-systems/#radio-system-except-cabriolet)
  9. Front Midrange Speakers -R26- & -R27- In upper front door trim Removing and installing, see «FRONT MIDRANGE SPEAKERS -R26- & -R27-, REMOVING AND INSTALLING»(/audi/a4/b6-2000-2006/remont/entertainment-systems/#radio-system-except-cabriolet)
  10. Front Bass Speakers - R21- &-R23- In lower front door trim Removing and installing, see «LOUDSPEAKERS IN DOORS, REMOVING AND INSTALLING»(/audi/a4/b6-2000-2006/remont/entertainment-systems/#radio-system-except-cabriolet__loudspeakers-in-doors-removing-and-installing)

"Concert II" and "Symphony II" radio systems (Avant), component overview

The following list pertains to Fig.2 .

  1. CD Changer Unit -R41- Optional In glove compartment Removing and installing, see «CD CHANGER UNIT -R41-, REMOVING AND INSTALLING»(/audi/a4/b6-2000-2006/remont/entertainment-systems/#radio-system-except-cabriolet) Check wiring, see «CHECKING WIRING BETWEEN RADIO AND CD CHANGER»(/audi/a4/b6-2000-2006/remont/entertainment-systems/#radio-system-except-cabriolet__checking-wiring-between-radio-and-cd)
  2. Center Mid/High Range Loudspeaker -R158- In instrument panel Removing and installing, see «CENTER MID/HIGH RANGE LOUDSPEAKER -R158-, REMOVING»(/audi/a4/b6-2000-2006/remont/entertainment-systems/#radio-system-except-cabriolet)
  3. Radio -R- In instrument panel, center Removing and installing "Concert II" radio, see «"CONCERT II" RADIO UNIT, REMOVING AND INSTALLING»(/audi/a4/b6-2000-2006/remont/entertainment-systems/#radio-system-except-cabriolet) Removing and installing "Symphony II" radio, see «"SYMPHONY II" RADIO UNIT, REMOVING AND INSTALLING»(/audi/a4/b6-2000-2006/remont/entertainment-systems/#radio-system-except-cabriolet)
  4. Amplifier -R12- (for rear loudspeakers or BOSE(R) power amplifier only with "BOSE(R) sound system") In right rear luggage compartment behind side trim Removing and installing amplifier for rear loudspeakers, see «AMPLIFIER -R12- FOR REAR LOUDSPEAKERS (AVANT), REMOVING AND INSTALLING»(/audi/a4/b6-2000-2006/remont/entertainment-systems/#radio-system-except-cabriolet) Removing and installing BOSE(R) power amplifier, see «AMPLIFIER -R12- BOSE (R) POWER AMPLIFIER (AVANT), REMOVING AND INSTALLING»(/audi/a4/b6-2000-2006/remont/entertainment-systems/#radio-system-except-cabriolet)
  5. Right rear window antenna With FM antenna 3
  6. Bass Loudspeaker -R100- In right rear luggage compartment behind side trim Removing and installing, see «BASS LOUDSPEAKER -R100- (AVANT), REMOVING AND INSTALLING»(/audi/a4/b6-2000-2006/remont/entertainment-systems/#radio-system-except-cabriolet)
  7. Rear window antenna With FM antenna 2
  8. Left rear window antenna With AM antenna and FM antenna 1
  9. Left Antenna Module -R- 108- In left rear luggage compartment behind side trim Removing and installing, see «LEFT ANTENNA MODULE -R108- (AVANT), REMOVING AND INSTALLING»(/audi/a4/b6-2000-2006/remont/entertainment-systems/#radio-system-except-cabriolet__left-antenna-module-r108-avant-removing)
  10. Rear Midrange Speakers -R34- &-R35- In upper rear door trim Removing and installing, see «REAR MIDRANGE SPEAKERS -R34 & -R35-, REMOVING AND INSTALLING»(/audi/a4/b6-2000-2006/remont/entertainment-systems/#radio-system-except-cabriolet)
  11. Rear Bass Speakers - R15- &-R17- In lower rear door trim Removing and installing, see «REAR BASS SPEAKERS -R15- & -R17-, REMOVING AND INSTALLING»(/audi/a4/b6-2000-2006/remont/entertainment-systems/#radio-system-except-cabriolet)
  12. Front Midrange Speakers -R26- & -R27- In upper front door trim Removing and installing, see «FRONT MIDRANGE SPEAKERS -R26- & -R27-, REMOVING AND INSTALLING»(/audi/a4/b6-2000-2006/remont/entertainment-systems/#radio-system-except-cabriolet)
  13. Front Bass Speakers - R21- &-R23- In lower front door trim Removing and installing, see «LOUDSPEAKERS IN DOORS, REMOVING AND INSTALLING»(/audi/a4/b6-2000-2006/remont/entertainment-systems/#radio-system-except-cabriolet__loudspeakers-in-doors-removing-and-installing)

Radio systems with Satellite Digital Audio Radio Service (SDARS) (Sedan), component overview

The following list pertains to Fig.3 .

  1. CD Changer Unit -R41- Optional In glove compartment Removing and installing, see «CD CHANGER UNIT -R41-, REMOVING AND INSTALLING»(/audi/a4/b6-2000-2006/remont/entertainment-systems/#radio-system-except-cabriolet) Check wiring, see «CHECKING WIRING BETWEEN RADIO AND CD CHANGER»(/audi/a4/b6-2000-2006/remont/entertainment-systems/#radio-system-except-cabriolet__checking-wiring-between-radio-and-cd)
  2. Center Mid/High Range Loudspeaker -R158- In instrument panel Removing and installing, see «CENTER MID/HIGH RANGE LOUDSPEAKER -R158-, REMOVING»(/audi/a4/b6-2000-2006/remont/entertainment-systems/#radio-system-except-cabriolet)
  3. Radio -R- In instrument panel, center Radio "Concert II" Removing and installing, see «"CONCERT II" RADIO UNIT, REMOVING AND INSTALLING»(/audi/a4/b6-2000-2006/remont/entertainment-systems/#radio-system-except-cabriolet) Radio "Symphony II" Removing and installing, see «"SYMPHONY II" RADIO UNIT, REMOVING AND INSTALLING»(/audi/a4/b6-2000-2006/remont/entertainment-systems/#radio-system-except-cabriolet)
  4. Satellite Tuner Antenna - R-172- On roof Also for Telematics and Navigation Removing and installing, see «SATELLITE TUNER ANTENNA -R172- (SEDAN), REMOVING AND INSTALLING»(/audi/a4/b6-2000-2006/remont/entertainment-systems/#radio-system-except-cabriolet)
  5. Amplifier -R12- (for rear loudspeakers or BOSE(R) power amplifier only with "BOSE(R) sound system") In right rear luggage compartment behind side trim Removing and installing amplifier for rear loudspeakers, see «AMPLIFIER -R12- FOR REAR LOUDSPEAKERS (AVANT), REMOVING AND INSTALLING»(/audi/a4/b6-2000-2006/remont/entertainment-systems/#radio-system-except-cabriolet) Removing and installing BOSE(R) power amplifier, see «AMPLIFIER -R12- BOSE (R) POWER AMPLIFIER (AVANT), REMOVING AND INSTALLING»(/audi/a4/b6-2000-2006/remont/entertainment-systems/#radio-system-except-cabriolet)
  6. Bass Loudspeaker -R100- Under rear parcel shelf Removing and installing, see «BASS LOUDSPEAKER -R100- (SEDAN), REMOVING AND INSTALLING»(/audi/a4/b6-2000-2006/remont/entertainment-systems/#radio-system-except-cabriolet)
  7. Antenna Selection Control Module -J515- Under rear headliner trim Removing and installing, see «ANTENNA SELECTION CONTROL MODULE -J515- (SEDAN), REMOVING AND INSTALLING»(/audi/a4/b6-2000-2006/remont/entertainment-systems/#radio-system-except-cabriolet)
  8. Satellite Radio -R-146- In left rear luggage compartment behind side trim Removing and installing, see «SATELLITE RADIO -R146-, REMOVING AND INSTALLING (SEDAN)»(/audi/a4/b6-2000-2006/remont/entertainment-systems/#radio-system-except-cabriolet)
  9. Rear Bass Speakers -R-15- &-R17- In lower rear door trim Removing and installing, see «REAR BASS SPEAKERS -R15- & -R17-, REMOVING AND INSTALLING»(/audi/a4/b6-2000-2006/remont/entertainment-systems/#radio-system-except-cabriolet)
  10. Rear Midrange Speakers -R-34- & -R35- In upper rear door trim Removing and installing, see «REAR MIDRANGE SPEAKERS -R34 & -R35-, REMOVING AND INSTALLING»(/audi/a4/b6-2000-2006/remont/entertainment-systems/#radio-system-except-cabriolet)
  11. Front Bass Speakers -R- 21- &-R23- In lower front door trim Removing and installing, see «LOUDSPEAKERS IN DOORS, REMOVING AND INSTALLING»(/audi/a4/b6-2000-2006/remont/entertainment-systems/#radio-system-except-cabriolet__loudspeakers-in-doors-removing-and-installing)
  12. Front Midrange Speakers -R-26- & -R27- In upper front door trim Removing and installing, see «FRONT MIDRANGE SPEAKERS -R26- & -R27-, REMOVING AND INSTALLING»(/audi/a4/b6-2000-2006/remont/entertainment-systems/#radio-system-except-cabriolet)

Radio systems with Satellite Digital Audio Radio Service (SDARS) (Avant), component overview

The following list pertains to Fig.4 .

  1. CD Changer Unit -R41- Optional In glove compartment Removing and installing, see «CD CHANGER UNIT -R41-, REMOVING AND INSTALLING»(/audi/a4/b6-2000-2006/remont/entertainment-systems/#radio-system-except-cabriolet) Check wiring, see «CHECKING WIRING BETWEEN RADIO AND CD CHANGER»(/audi/a4/b6-2000-2006/remont/entertainment-systems/#radio-system-except-cabriolet__checking-wiring-between-radio-and-cd)
  2. Center Mid/High Range Loudspeaker -R-158 In instrument panel Removing and installing, see «CENTER MID/HIGH RANGE LOUDSPEAKER -R158-, REMOVING»(/audi/a4/b6-2000-2006/remont/entertainment-systems/#radio-system-except-cabriolet)
  3. Radio -R- In instrument panel, center Radio "Concert II" Removing and installing, see «"CONCERT II" RADIO UNIT, REMOVING AND INSTALLING»(/audi/a4/b6-2000-2006/remont/entertainment-systems/#radio-system-except-cabriolet) Radio "Symphony II" Removing and installing, see «"SYMPHONY II" RADIO UNIT, REMOVING AND INSTALLING»(/audi/a4/b6-2000-2006/remont/entertainment-systems/#radio-system-except-cabriolet)
  4. Amplifier -R12- (for rear loudspeakers or BOSE(R) power amplifier only with "BOSE(R) sound system") In right rear luggage compartment behind side trim Removing and installing amplifier for rear loudspeakers, see «AMPLIFIER -R12- FOR REAR LOUDSPEAKERS (AVANT), REMOVING AND INSTALLING»(/audi/a4/b6-2000-2006/remont/entertainment-systems/#radio-system-except-cabriolet) Removing and installing BOSE(R) power amplifier, see «AMPLIFIER -R12- BOSE (R) POWER AMPLIFIER (AVANT), REMOVING AND INSTALLING»(/audi/a4/b6-2000-2006/remont/entertainment-systems/#radio-system-except-cabriolet)
  5. Right rear window antenna With FM-antenna 3
  6. Bass Loudspeaker -R- 100- In right rear luggage compartment behind side trim Removing and installing, see «BASS LOUDSPEAKER -R100- (AVANT), REMOVING AND INSTALLING»(/audi/a4/b6-2000-2006/remont/entertainment-systems/#radio-system-except-cabriolet)
  7. Satellite Tuner Antenna - R-172- On roof Also for Telematics and Navigation Removing and installing, see «SATELLITE TUNER ANTENNA -R172- (AVANT), REMOVING AND INSTALLING»(/audi/a4/b6-2000-2006/remont/entertainment-systems/#radio-system-except-cabriolet__satellite-tuner-antenna-r172-avant-removing)
  8. Rear window antenna With FM-antenna 2
  9. Satellite Radio -R146- In left rear luggage compartment behind side trim Removing and installing, see «SATELLITE RADIO -R146-, REMOVING AND INSTALLING (AVANT)»(/audi/a4/b6-2000-2006/remont/entertainment-systems/#radio-system-except-cabriolet)
  10. Left Antenna Module -R- 108- In left rear luggage compartment behind side trim Removing and installing, see «LEFT ANTENNA MODULE -R108- (AVANT), REMOVING AND INSTALLING»(/audi/a4/b6-2000-2006/remont/entertainment-systems/#radio-system-except-cabriolet__left-antenna-module-r108-avant-removing)
  11. Left rear window antenna With AM-antenna and FM-antenna 1
  12. Rear Bass Speakers -R-15, -R-17 In lower rear door trim Removing and installing, see «REAR BASS SPEAKERS -R15- & -R17-, REMOVING AND INSTALLING»(/audi/a4/b6-2000-2006/remont/entertainment-systems/#radio-system-except-cabriolet)
  13. Rear Midrange Speakers -R-34, -R-35 In upper rear door trim Removing and installing, see «REAR MIDRANGE SPEAKERS -R34 & -R35-, REMOVING AND INSTALLING»(/audi/a4/b6-2000-2006/remont/entertainment-systems/#radio-system-except-cabriolet)
  14. Front Bass Speakers -R- 21, -R-23 In lower front door trim Removing and installing, see «LOUDSPEAKERS IN DOORS, REMOVING AND INSTALLING»(/audi/a4/b6-2000-2006/remont/entertainment-systems/#radio-system-except-cabriolet__loudspeakers-in-doors-removing-and-installing)
  15. Front Midrange Speakers -R-26, -R-27 In upper front door trim Removing and installing, see «FRONT MIDRANGE SPEAKERS -R26- & -R27-, REMOVING AND INSTALLING»(/audi/a4/b6-2000-2006/remont/entertainment-systems/#radio-system-except-cabriolet)

"Concert II" and "Symphony II" radio system (Sedan), layout

The following list pertains to Fig.5 .

  1. Rear window antennas
  2. Antenna Selection Control Module -J515- Under rear headliner trim
  3. Front Bass Speakers In lower front door trim
  4. Front Midrange Speakers In upper front door trim
  5. Rear Bass Speakers In lower rear door trim
  6. Rear Midrange Speakers In upper rear door trim
  7. Amplifier -R12- (for rear loudspeakers) In right rear luggage compartment behind side trim
  8. Bass Loudspeaker Below rear shelf
  9. Center Mid/High Range Loudspeaker In instrument panel
  10. CD Changer Unit -R41- Optional In glove compartment

"Concert II" and "Symphony II" radio systems (Avant), layout

The following list pertains to Fig.6 .

  1. Antenna Selection Control Module -J515- In left rear luggage compartment behind side trim
  2. Left rear window antenna
  3. Rear window antenna
  4. Right rear window antenna
  5. Front Bass Speakers In lower front door trim
  6. Front Midrange Speakers In upper front door trim
  7. Rear Bass Speakers In lower rear door trim
  8. Rear Midrange Speakers In upper rear door trim
  9. Amplifier -R12- (for rear loudspeakers) In right rear luggage compartment behind side trim
  10. Bass Loudspeaker In right rear luggage compartment behind side trim
  11. Center Mid/High Range Loudspeaker In instrument panel
  12. CD Changer Unit -R41- Optional In glove compartment

"Concert II" and "Symphony II", Multi-pin connector terminal assignments

Note. Terminals which are not listed are vacant/unassigned.

Multi-pin connector I, 20-pin - black

The following list pertains to Fig.7 .

  1. 1 - Line output - left rear
  2. 2 - Line output - right rear
  3. 3 - Line output, Ground (GND)
  4. 4 - Line output - left front
  5. 5 - Line output - right front
  6. 6 - Switched positive for power amplifier
  7. 7 - CAN Bus - High (Infotainment)
  8. 10 - Ground (GND) (CD changer)
  9. 12 - CAN Bus - Low (Infotainment)
  10. 13 - CD bus data input (CD changer)
  11. 14 - CD bus data output (CD changer)
  12. 15 - CD clock (CD changer)
  13. 16 - Battery positive B+ (CD changer)
  14. 17 - Switched positive for CD changer
  15. 18 - Ground (GND) Line output (CD changer)
  16. 19 - Line output - left (CD changer)
  17. 20 - Line output - right (CD changer)

Multi-pin connector II, 8-pin, brown

The following list pertains to Fig.8 .

  1. 3 - Loudspeaker +, right front
  2. 4 - Loudspeaker -, right front
  3. 5 - Loudspeaker + left front
  4. 6 - Loudspeaker - left front

Multi-pin connector III, 8-pin, black

The following list pertains to Fig.9 .

  1. 2 - Anti-theft signal
  2. 3 - Data Link Connector (DLC)
  3. 7 - Supply voltage B+ (terminal 30)
  4. 8 - Ground (GND) (terminal 31)

Multi-pin connector IV, 10-pin, red

The following list pertains to Fig.10 .

  1. 1 - Telephone mute (low frequency mute)
  2. 3 - Telephone (low frequency +) (not on vehicles with navigation system)
  3. 4 - Telephone (low frequency -) (not on vehicles with navigation system)
  4. 5 - Navigation system (low frequency+)
  5. 6 - Navigation system (low frequency-)
  6. 7 - Navigation system control wire

"Concert II" and "Symphony II" radio systems with "BOSE(R) sound system" (Sedan), layout

The following list pertains to Fig.11 .

  1. Rear window antennas
  2. Antenna Selection Control Module -J515- Under rear headliner trim
  3. BOSE(R) power amplifier In right rear luggage compartment behind side trim
  4. Front Bass Speakers In lower front door trim
  5. Front Midrange Speakers In upper front door trim
  6. Rear Bass Speakers In lower rear door trim
  7. Rear Midrange Speakers In upper rear door trim
  8. Bass Loudspeaker Below rear shelf
  9. Center Mid/High Range Loudspeaker In instrument panel
  10. CD Changer Unit -R41- Optional In glove compartment

"Concert II" and "Symphony II" radio systems with "BOSE(R) sound system" (Avant), layout

The following list pertains to Fig.12 .

  1. Left Antenna Module In left rear luggage compartment behind side trim
  2. Left rear window antenna
  3. Rear window antenna
  4. Right rear window antenna
  5. BOSE(R) power amplifier In right rear luggage compartment behind side trim
  6. Front Bass Speakers In lower front door trim
  7. Front Midrange Speakers In upper front door trim
  8. Rear Bass Speakers In lower rear door trim
  9. Rear Midrange Speakers In upper rear door trim
  10. Bass Loudspeaker Below rear shelf
  11. Center Mid/High Range Loudspeaker In instrument panel
  12. CD Changer Unit -R41- Optional In glove compartment

"Concert II" and "Symphony II" radio systems with "BOSE(R) sound system", Multi-pin connector terminal assignments

Note. Terminals which are not listed are vacant/unassigned.

The following list pertains to Fig.13 .

  1. 1 - Line output - left rear
  2. 2 - Line output - right rear
  3. 3 - Line output, Ground (GND)
  4. 4 - Line output - left front
  5. 5 - Line output - right front
  6. 6 - Switched positive for BOSE(R) power amplifier
  7. 7 - CAN Bus - High (Infotainment)
  8. 10 - Ground (GND) (CD changer)
  9. 12 - CAN Bus - Low (Infotainment)
  10. 13 - CD bus data input (CD changer)
  11. 14 - CD bus data output (CD changer)
  12. 15 - CD clock (CD changer)
  13. 16 - Battery positive B+ (CD changer)
  14. 17 - Switched positive for CD changer
  15. 18 - Ground (GND) line output (CD changer)
  16. 19 - Line output - left (CD changer)
  17. 20 - Line output - right (CD changer)

The following list pertains to Fig.14 .

  1. 1 - BOSE coding (Ground (GND))
  2. 2 - Anti-theft signal
  3. 3 - Data Link Connector (DLC)
  4. 7 - Supply voltage (terminal 30)
  5. 8 - Ground (GND) (terminal 31)

The following list pertains to Fig.15 .

  1. 1 - Telephone mute (low frequency mute)
  2. 3 - Telephone (low frequency+) (not on vehicles with navigation system)
  3. 4 - Telephone (low frequency-) (not on vehicles with navigation system)
  4. 5 - Navigation system (low frequency+)
  5. 6 - Navigation system (low frequency-)
  6. 7 - Navigation system control wire

Multi-pin connector, 25-pin

The following list pertains to Fig.16 .

  1. 1 - Center mid/high range loudspeaker (+)
  2. 2 - Center mid/high range loudspeaker (-)
  3. 6 - Line output - Ground (GND) (from Radio)
  4. 7 - Line output - right rear (from Radio)
  5. 8 - Line output - left rear (from Radio)
  6. 9 - Line output - right front (from Radio)
  7. 10 - Line output - left front (from Radio)
  8. 11 - Ground (GND) (terminal 31)
  9. 13 - Battery B+ (terminal 30)
  10. 14 - Bass loudspeaker (+)
  11. 15 - Bass loudspeaker (-)
  12. 16 - Loudspeaker (-) left front
  13. 17 - Loudspeaker (+) left front
  14. 18 - Loudspeaker (+) right front
  15. 19 - Loudspeaker (-) right front
  16. 20 - Loudspeaker (+) left rear
  17. 21 - Loudspeaker (-) left rear
  18. 22 - Loudspeaker (+) right rear
  19. 23 - Loudspeaker (-) right rear
  20. 25 - Switched positive

Multi-pin connector, 32-pin

The following list pertains to Fig.17 .

  1. 1 - Battery B+ (terminal 30)
  2. 2 - Ground (GND) (terminal 31)
  3. 3 - Bass loudspeaker (+)
  4. 4 - Loudspeaker (-) left rear
  5. 5 - Loudspeaker (+) right rear
  6. 6 - Switched positive (from Radio)
  7. 7 - Line output - Ground (GND) (from Radio)
  8. 13 - Center mid/high range loudspeaker (+)
  9. 14 - Center mid/high range loudspeaker (-)
  10. 15 - Bass loudspeaker (-)
  11. 16 - Loudspeaker (+) left rear
  12. 17 - Loudspeaker (-) right rear
  13. 19 - Line output - left front (from Radio)
  14. 20 - Line output - right front (from Radio)
  15. 21 - Line output - left rear (from Radio)
  16. 22 - Line output - right rear (from Radio)
  17. 26 - Loudspeaker (-) right front
  18. 27 - Loudspeaker (+) right front
  19. 29 - Microphone (+) not connected
  20. 30 - Microphone (-) not connected
  21. 31 - Loudspeaker (+) left front
  22. 32 - Loudspeaker (-) left front

Radio system SDARS with BOSE(R) sound system (Sedan), layout

The following list pertains to Fig.18 .

  1. Rear window antennas
  2. Antenna Selection Control Module -J515- Under rear headliner trim
  3. Radio
  4. BOSE(R) power amplifier In right rear luggage compartment behind side trim
  5. Front Midrange Speakers In upper front door trim
  6. Front Bass Speakers In lower front door trim
  7. Rear Midrange Speakers In upper rear door trim
  8. Rear Bass Speakers In lower rear door trim
  9. Bass Loudspeaker Under rear parcel shelf
  10. Center Mid/High Range Loudspeaker In instrument panel
  11. CD Changer Unit In glove compartment
  12. Satellite Radio In left rear luggage compartment
  13. Satellite Tuner Antenna On roof Also for Telematics and Navigation

Radio system SDARS with BOSE(R) sound system (Avant), layout

The following list pertains to Fig.19 .

  1. Left Antenna Module In left rear luggage compartment behind trim
  2. Left rear window antenna
  3. Rear window antenna
  4. Right rear window antenna
  5. Radio
  6. BOSE power amplifier In right rear luggage compartment behind trim
  7. Front Midrange Speakers In upper front door trim
  8. Front Bass Speakers In lower front door trim
  9. Rear Midrange Speakers In upper rear door trim
  10. Rear Bass Speakers In lower rear door trim
  11. Bass Loudspeaker Under rear parcel shelf
  12. Center Mid/High Range Loudspeaker In instrument panel
  13. CD Changer Unit In glove compartment
  14. Satellite Radio In left rear luggage compartment
  15. Satellite Tuner Antenna On roof Also for Telematics and Navigation

Communication system with SDARS, layout

The following list pertains to Fig.20 .

  1. Satellite Radio In left rear luggage compartment
  2. Satellite Tuner Antenna on roof
  3. Antenna splitter (GPS) Only Avant In left rear luggage compartment behind trim
  4. Antenna for Navigation (GPS) Only sedan Behind roof end trim
  5. Control module for navigation with CD mechanism In left rear luggage compartment behind trim
  6. Radio system antenna
  7. Antenna amplifier
  8. Speakers
  9. Radio
  10. CAN Bus (Infotainment)
  11. CD Changer Unit In glove compartment
  12. Telephone/Telematics Control Module Under front passenger seat

Multi-pin connector assignments on "Symphony II" radio

The following list pertains to Fig.21 .

  1. Multi-pin connector IV, 10-pin, red
  2. Multi-pin connector I, 20-pin - black
  3. Radio fuse
  4. Multi-pin connector III, 8-pin, black
  5. Multi-pin connector II, 8-pin, brown
  6. Intermediate frequency wire
  7. Antenna connection (high frequency wire)

Multi-pin connector assignments on Satellite Radio - R146

Note. Terminals which are not listed are vacant/unassigned.

  1. Multi-pin connector, 8-pin CAN-Bus High (Infotainment) CAN-Bus Low (Infotainment) CD-IN L (CD Changer Unit) CD-IN R (CD Changer Unit) NF - Ground (GND) (Radio) NF - left (Radio) NF - right (Radio) CD Ground (GND) (CD Changer Unit)
  2. Multi-pin connector, 8-pin Terminal 30 (B+) Terminal 31 (GND)
  3. Connection - Satellite Tuner Antenna (brown)
  4. Connection - Satellite Tuner Antenna (green)

Special tools and workshop equipment required

  1. Radio release tool T10057

Removing

  1. Push clips of radio release tool T10057 into front of radio. Top L - top left Top R - top right
  2. Pull radio out from instrument panel
  3. Disconnect electrical connections and antenna wire.
  4. Pull out release tool from the radio - to do this, press in locking tabs on radio.

Installing

  1. Reconnect electrical connections and antenna wire.
  2. Carefully insert radio into instrument panel and engage in installation slot.
  3. Code radio if replacement unit is installed. Use VAS 5051 Vehicle Diagnostic, Testing and Information System in mode "Guided Fault Finding".
  1. Radio release tool T10057
  1. Push the four clips of radio release tool T10057 into the front. Top L - top left Top R - top right
  2. Pull radio out from instrument panel.
  3. Disconnect electrical connections and antenna wire.
  4. Pull out release tool from the radio - to do this, press in the locking tabs at top and bottom on radio.
  1. Reconnect electrical connections and antenna wire.
  2. Carefully insert radio into instrument panel and let it engage in installation slot.
  3. Code radio if replacement unit is installed. Use VAS 5051 Vehicle Diagnostic, Testing and Information System in mode "Guided Fault Finding".
  1. Radio release tool T10057
  1. Open glove compartment.
  2. Push clips of radio release tool T10057 into front of CD changer as illustrated.
  3. Pull CD changer out of installation slot.
  4. Disconnect electrical connection.
  5. Pull out release tool from CD changer - to do this, press in locking tabs on CD changer.
  1. Reconnect electrical connection.
  2. Slide CD changer into installation slot until it engages.
  3. After installation, it is essential that the wiring is checked, see «CHECKING WIRING BETWEEN RADIO AND CD CHANGER»(/audi/a4/b6-2000-2006/remont/entertainment-systems/#radio-system-except-cabriolet__checking-wiring-between-radio-and-cd)

Checking wiring between radio and CD changer

  1. Switch off radio.

"Concert II" radio

  1. Press CD button on radio and switch radio on at the same time.

"Symphony II" radio

  1. Press button "4" on radio and switch radio on at the same time, keeping the ON button pressed in.

All models

  1. Wiring OK Indicated on radio display: "CONNECT"
  2. Wiring not OK Indicated on radio display: "NO CDC" Check electrical connections at CD changer. Repeat wiring test and, if the wiring is not OK, use wiring diagrams to check wiring.
  1. Remove sub compartment in luggage compartment, left. See «LUGGAGE COMPARTMENT SIDE TRIM, ASSEMBLY OVERVIEW»(/audi/a4/b6-2000-2006/remont/gauges-instrument-panels/#interior-trim-except-cabriolet__luggage-compartment-side-trim-assembly-overview) . Satellite radio -1- slides/locks into adapter plate -2- mounted to rear of sub compartment -3-.
  2. Disconnect electrical connections at satellite radio. Adapter plate does not need to be removed.
  3. Depress both locking catches on adapter plate -2- in direction of -arrows-.
  4. Slide out and remove satellite radio -1- from adapter plate -2-.
  1. Install in reverse order of removal.
  1. Remove sub compartment in luggage compartment, left. See «LUGGAGE COMPARTMENT SIDE TRIM, ASSEMBLY OVERVIEW»(/audi/a4/b6-2000-2006/remont/gauges-instrument-panels/#interior-trim-except-cabriolet__luggage-compartment-side-trim-assembly-overview) . Satellite radio -1- slides/locks into adapter plate -2- mounted to rear of sub compartment -3-.
  2. Disconnect electrical connections at satellite radio. Adapter plate does not need to be removed.
  3. Depress both locking catches on adapter plate -2- in direction of -arrows-.
  4. Slide out and remove satellite radio -1- from adapter plate -2-.
  1. Install in reverse order of removal.

Loudspeakers in doors, removing and installing

Front Midrange Speakers -R26- & -R27-, removing and installing , see FRONT MIDRANGE SPEAKERS -R26- & -R27-, REMOVING AND INSTALLING

Rear Bass Speakers -R15- & -R17-, removing and installing , see REAR BASS SPEAKERS -R15- & -R17-, REMOVING AND INSTALLING

Rear Midrange Speakers -R34 & -R35-, removing and installing , see REAR MIDRANGE SPEAKERS -R34 & -R35-, REMOVING AND INSTALLING

  1. Remove front door trim. See «FRONT DOOR TRIM»(/audi/a4/b6-2000-2006/remont/gauges-instrument-panels/#interior-trim-except-cabriolet) .
  2. Disconnect electrical connections -2- and -3-.
  3. Remove bolts -4- on loudspeaker -5- and remove loudspeaker. 1- Expanding nut
  1. Install in reverse order of removal.
  2. Hook retaining lugs on loudspeaker into installation opening.
  3. Tighten bolts on loudspeaker to 2 Nm.
  1. Hook 3370 for front end
  1. Pull loudspeaker cover -1- at the top of the door trim upward and off using special tool 3370 (arrow).
  2. Disconnect electrical connection -2-.
  3. Release clasps -arrows- and remove loudspeaker -1-.
  1. Install in reverse order of removal.
  1. Remove rear door trim. See «REAR DOOR TRIM»(/audi/a4/b6-2000-2006/remont/gauges-instrument-panels/#interior-trim-except-cabriolet) .
  2. Disconnect electrical connections -2- and -3-.
  3. Remove bolts -4- on loudspeaker -5- and remove loudspeaker. 1 - Expanding nut
  1. Install in reverse order of removal.
  2. Hook the retaining lugs on loudspeaker into the installation opening.
  3. Tighten bolts on loudspeaker to 2 Nm.
  1. Remove rear door trim. See «REAR DOOR TRIM»(/audi/a4/b6-2000-2006/remont/gauges-instrument-panels/#interior-trim-except-cabriolet) .
  2. Disconnect electrical connection -1-.
  3. Release clasps -arrows- and remove loudspeaker -2-.
  1. Install in reverse order of removal.
  1. Carefully pry off the cover -A- for sunlight photo sensor.
  2. Remove screw -B-.
  3. Disconnect electrical connection.
  4. Remove screw -1-.
  5. Detach defroster vent.
  6. Remove bolts -1-.
  7. Swivel out loudspeaker and disconnect electrical connection.
  1. Install in reverse order of removal.
  2. Tighten bolts on loudspeaker to 2 Nm.
  3. Tighten bolts for the defroster vent and photosensor to 0.8 Nm.
  1. Remove rear shelf. See «REAR SHELF, ASSEMBLY OVERVIEW»(/audi/a4/b6-2000-2006/remont/gauges-instrument-panels/#interior-trim-except-cabriolet__rear-shelf-assembly-overview) .
  2. Working from the rear shelf, unscrew and remove two bolts -4-.
  3. Working from the luggage compartment, unscrew and remove single bolt -2-.
  4. Disconnect electrical connection -1- and lift out loudspeaker -3-.
  1. Install in reverse order of removal.
  2. Tighten bolts on loudspeaker to 2 Nm.
  1. Open cover in side trim on right rear side of luggage compartment.
  2. Disconnect electrical connections -1- and -2-.
  3. Unscrew bolts -arrows-.
  4. Remove bass loudspeaker -3- together with amplifier -4
  1. Install in reverse order of removal.
  2. Tighten bolts on loudspeaker to 2 Nm.
  1. Remove right luggage compartment trim. See «LUGGAGE COMPARTMENT SIDE TRIM, ASSEMBLY OVERVIEW»(/audi/a4/b6-2000-2006/remont/gauges-instrument-panels/#interior-trim-except-cabriolet__luggage-compartment-side-trim-assembly-overview) .
  2. Disconnect electrical connection -2-.
  3. Unscrew connections and remove amplifier -1-.
  1. Install in reverse order of removal.
  2. Tighten connections on amplifier to 3.5 Nm.
  1. Open cover in side trim on right rear side of luggage compartment.
  2. Disconnect electrical connection -1-.
  3. Unscrew connections -arrows- and remove amplifier -2-.
  1. Install in reverse order of removal.
  1. Remove right luggage compartment trim. See «LUGGAGE COMPARTMENT SIDE TRIM, ASSEMBLY OVERVIEW»(/audi/a4/b6-2000-2006/remont/gauges-instrument-panels/#interior-trim-except-cabriolet__luggage-compartment-side-trim-assembly-overview) .
  2. Disconnect electrical connection -2-.
  3. Unscrew connections and remove amplifier -1-.
  1. Install in reverse order of removal.
  2. Tighten screwed connections on amplifier to 3.5 Nm.
  1. Open cover in side trim on right side of luggage compartment.
  2. Disconnect electrical connection -1-.
  3. Unscrew bolts -arrows- and remove amplifier -2-.
  1. Install in reverse order of removal.
  1. Remove rear headliner trim. See «MOLDED HEADLINER, ASSEMBLY OVERVIEW»(/audi/a4/b6-2000-2006/remont/gauges-instrument-panels/#interior-trim-except-cabriolet__molded-headliner-assembly-overview) .
  2. Disconnect Ground (GND) lead -1-.
  3. Release clasps -arrows- and remove control module -3-. NOTE: Illustration shows antenna selection control module on vehicle without radio remote control for auxiliary heater.
  4. Disconnect electrical connections -2-.
  1. Install in reverse order of removal.
  2. Reconnect the electrical connections according to the color-coding on the control module for antenna selection.

Left Antenna Module -R108- (Avant), removing and installing

  1. Remove side trim on left-hand luggage compartment storage See «SIDE LUGGAGE COMPARTMENT TRIM, ASSEMBLY OVERVIEW»(/audi/a4/b6-2000-2006/remont/gauges-instrument-panels/#interior-trim-except-cabriolet__side-luggage-compartment-trim-assembly-overview) .
  2. Disconnect electrical connections.
  3. Remove bolts -arrows- and remove control module -1-.
  1. Install in reverse order of removal.
  2. Tighten connections on control module to 2 Nm.
  1. Remove rear headliner trim. See «MOLDED HEADLINER, ASSEMBLY OVERVIEW»(/audi/a4/b6-2000-2006/remont/gauges-instrument-panels/#interior-trim-except-cabriolet__molded-headliner-assembly-overview) .
  2. Remove left and right D-pillar trim. See «D-PILLAR TRIM, ASSEMBLY OVERVIEW»(/audi/a4/b6-2000-2006/remont/gauges-instrument-panels/#interior-trim-except-cabriolet__d-pillar-trim-assembly-overview) .
  3. Remove rear interior lamps. See «REAR INTERIOR LIGHT/READING LIGHT, REMOVING AND INSTALLING»(/audi/a4/b6-2000-2006/remont/communication-devices/#lights-switches-interior-anti-theft-except-cabriolet) .
  4. Partially pull down rear headliner enough to access connections.
  5. Disconnect electrical connections at D-pillars.
  6. Loosen antenna cables up to antenna.
  7. Remove nut -arrow- (7 Nm).
  8. Remove antenna upwards from roof.
  1. Install in reverse order of removal.

Satellite Tuner Antenna -R172- (Avant), removing and installing

Cables for roof antennas are routed differently. GPS antenna and Satellite tuner antenna cables are routed to modules located on sub compartment in left rear luggage compartment. The Telematic antenna is connected at the right D-pillar.

  1. Remove rear headliner trim. See «MOLDED HEADLINER, ASSEMBLY OVERVIEW»(/audi/a4/b6-2000-2006/remont/gauges-instrument-panels/#interior-trim-except-cabriolet) .
  2. Remove left and right D-pillar trim. See «D-PILLAR TRIM, ASSEMBLY OVERVIEW»(/audi/a4/b6-2000-2006/remont/gauges-instrument-panels/#interior-trim-except-cabriolet) .
  3. Remove luggage compartment lights. See «CARGO AREA LIGHT (AVANT), REMOVING AND INSTALLING»(/audi/a4/b6-2000-2006/remont/communication-devices/#lights-switches-interior-anti-theft-except-cabriolet) .
  4. Remove left luggage compartment trim. See «SIDE LUGGAGE COMPARTMENT TRIM, ASSEMBLY OVERVIEW»(/audi/a4/b6-2000-2006/remont/gauges-instrument-panels/#interior-trim-except-cabriolet__side-luggage-compartment-trim-assembly-overview) .
  5. Partially pull down rear headliner enough to access connections.
  6. Disconnect antenna cable connections at right D-pillar and at modules on sub compartment.
  7. Loosen antenna cables up to antenna.
  8. Remove nut -arrow- (7 Nm).
  9. Remove antenna upwards from roof.
  1. Install in reverse order of removal.

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