Audi A4 B6 (2000-2006) steering wheel control unit Wiring diagrams

AIR CONDITIONING CONTROLS AIR FLOW FLAP MOTOR/ POSITION SENSOR AIR QUALITY SENSOR (RIGHT REAR OF ENG COMPT) AIRBAG SPIRAL SPRING/ RETURN SPRING W/ SLIP RING B+ B- BLK WIRE BLK/GRN WIRE BLU/RED WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/VIO WIRE BRN/WHT (OR BRN) WIRE BRN/WHT WIRE CENTRAL AIR FLAP MOTOR/ POSITION SENSOR COMPUTER DATA LINES SYSTEM DEFROSTER FLAP MOTOR, POSITION SENSOR EVAPORATOR VENT TEMPERATURE SENSOR (BEHIND RIGHT END OF DASH) FRESH AIR INTAKE DUCT TEMPERATURE SENSOR (BEHIND RIGHT END OF DASH) GRY WIRE GRY/BLK WIRE GRY/GRN WIRE GRY/RED WIRE GRY/WHT WIRE GRY/YEL WIRE HEATED FRONT WINDOW HIGH PRESSURE SENSOR LEFT FOOTWELL VENT TEMPERATURE SENSOR (BELOW CENTER OF DASH) LEFT TEMPERATURE FLAP ACTUATOR/ POTENTIOMETER ORG/BRN WIRE ORG/GRN WIRE RECIRCULATION FLAP MOTOR, POSITION SENSOR RED WIRE RED/BLU WIRE RED/YEL WIRE RIGHT FOOTWELL VENT TEMPERATURE SENSOR (BELOW CENTER OF DASH) RIGHT TEMPERATURE FLAP ACTUATOR/ POTENTIOMETER STEERING COLUMN ELECTRONIC SYSTEMS CONTROL MODULE (AT TOP OF STEERING COLUMN) STEERING WHEEL CONTROL UNIT SUNLIGHT PHOTO SENSOR (ON TOP CENTER OF DASH) WHT/GRN WIRE WHT/YEL WIRE WINDSHIELD HEATING VOLTAGE CONVERTER (IF EQUIPPED) YEL/BLK WIRE

A/C CONTROL HEAD AIR CONDITIONING SYSTEM AIRBAG SPIRAL SPRING/ RETURN SPRING W/ SLIP RING BLK WIRE BLK/GRN WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DRIVER'S BACKREST HEATING ELEMENT DRIVER'S SEAT HEATER FUSE 44 FUSE HOLDER (LEFT END OF DASH) GRN WIRE HEATED SEAT TEMP SENSOR HEATED STEERING WHEEL (IF EQUIPPED) HOT AT ALL TIMES NCA WIRE ORG/ WIRE ORG/BRN WIRE ORG/GRN WIRE PASSENGER'S BACKREST HEATING ELEMENT PASSENGER'S SEAT HEATER RED WIRE RED/WHT WIRE SEAT HEATER SIDE BOLSTER HEATER STEERING COLUMN ELECTRONIC SYSTEMS CONTROL MODULE (IF EQUIPPED) (TOP OF COLUMN) STEERING WHEEL CONTROL UNIT WHT WIRE YEL WIRE YEL/BLU WIRE

A/C CONTROL HEAD AIR CONDITIONING SYSTEM AIRBAG SPIRAL SPRING/ RETURN SPRING W/ SLIP RING BLK WIRE BLK/GRN WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DRIVER'S BACKREST HEATING ELEMENT DRIVER'S SEAT HEATER FUSE 44 FUSE HOLDER (LEFT END OF DASH) GRN WIRE HEATED SEAT TEMP SENSOR HEATED STEERING WHEEL (IF EQUIPPED) HOT AT ALL TIMES NCA WIRE ORG/ WIRE ORG/BRN WIRE ORG/GRN WIRE PASSENGER'S BACKREST HEATING ELEMENT PASSENGER'S SEAT HEATER RED WIRE RED/WHT WIRE SEAT HEATER SIDE BOLSTER HEATER STEERING COLUMN ELECTRONIC SYSTEMS CONTROL MODULE (IF EQUIPPED) (TOP OF COLUMN) STEERING WHEEL CONTROL UNIT WHT WIRE YEL WIRE YEL/BLU WIRE

+2 -1 -1 +2 AIRBAG SPIRAL SPRING/ RETURN SPRING W/ SLIP RING AMPLIFIER BLK WIRE BLU WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/WHT WIRE BRN/YEL WIRE CD CHANGER UNIT COMFORT SYSTEM CENTRAL CONTROL MODULE (NEAR BASE OF LEFT FRONT SEAT, IN E-BOX) COMPUTER DATA LINES SYSTEM CONTROL MODULE FOR NAVIGATION W/ CD-MECHANISM (LEFT REAR OF LUGGAGE COMPT) FUSE 39 FUSE HOLDER (LEFT END OF DASH) GRN WIRE GRN/BLU WIRE GRN/YEL WIRE GRY WIRE HOT AT ALL TIMES INSIDE LOUDSPEAKER (CENTER SPEAKER) INSTRUMENT CLUSTER LEFT ANTENNA MODULE LEFT FRONT BASS SPEAKER LEFT FRONT DSP MIDRANGE SPEAKER LEFT FRONT TREBLE SPEAKER LEFT REAR SPEAKER NCA WIRE ORG/ WIRE ORG/BLK WIRE ORG/BRN WIRE ORG/GRN WIRE ORG/VIO WIRE PNK WIRE RADIO RADIO CONTROLS RED WIRE RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/YEL WIRE RIGHT ANTENNA MODULE RIGHT FRONT BASS SPEAKER RIGHT FRONT DSP MIDRANGE SPEAKER RIGHT FRONT TREBLE SPEAKER RIGHT REAR SPEAKER STEERING COLUMN ELECTRONIC SYSTEMS CONTROL MODULE (AT TOP OF STEERING COLUMN) STEERING WHEEL CONTROL UNIT TELEPHONE PREPARATION WIRING (IF EQUIPPED) VIO/BRN WIRE VIO/GRN WIRE WHT WIRE YEL WIRE

+2 -1 -1 +2 AIRBAG SPIRAL SPRING/ RETURN SPRING W/ SLIP RING AMPLIFIER BLK WIRE BLK/BLU WIRE BLU WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/VIO WIRE BRN/YEL WIRE CD CHANGER UNIT COMFORT SYSTEM CENTRAL CONTROL MODULE (NEAR BASE OF LEFT FRONT SEAT, IN E-BOX) COMPUTER DATA LINES SYSTEM CONTROL MODULE FOR NAVIGATION W/ CD-MECHANISM (LEFT REAR OF LUGGAGE COMPT) FUSE 39 FUSE HOLDER (LEFT END OF DASH) GRN WIRE GRN/BLU WIRE GRN/YEL WIRE GRY WIRE HOT AT ALL TIMES INSIDE LOUDSPEAKER (CENTER SPEAKER) INSTRUMENT CLUSTER LEFT ANTENNA MODULE LEFT FRONT BASS SPEAKER LEFT FRONT DSP MIDRANGE SPEAKER LEFT FRONT TREBLE SPEAKER LEFT REAR SPEAKER NCA WIRE ORG/ WIRE ORG/BLK WIRE ORG/BRN WIRE ORG/GRN WIRE ORG/VIO WIRE PNK WIRE RADIO RADIO CONTROLS RED WIRE RED/BLU WIRE RED/GRN WIRE RED/YEL WIRE RIGHT ANTENNA MODULE RIGHT FRONT BASS SPEAKER RIGHT FRONT DSP MIDRANGE SPEAKER RIGHT FRONT TREBLE SPEAKER RIGHT REAR SPEAKER STEERING COLUMN ELECTRONIC SYSTEMS CONTROL MODULE (IF EQUIPPED) (TOP OF COLUMN) STEERING WHEEL CONTROL UNIT TELEPHONE PREPARATION WIRING (IF EQUIPPED) VIO WIRE VIO/YEL WIRE WHT WIRE YEL WIRE YEL/BLU WIRE

+2 -1 LEFT REAR BASS SPEAKER -1 +2 1- 2+ LEFT FRONT BASS SPEAKER 1- 2+ RIGHT FRONT BASS SPEAKER 1- 2+ RIGHT REAR BASS SPEAKER AIRBAG SPIRAL SPRING/ RETURN SPRING W/ SLIP RING AMPLIFIER ANTENNA AVANT BASS LOUDSPEAKER BLK WIRE BLU WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/YEL WIRE CD CHANGER UNIT COMFORT SYSTEM CENTRAL CONTROL MODULE (NEAR BASE OF LEFT FRONT SEAT, IN E-BOX) COMPUTER DATA LINES SYSTEM CONTROL MODULE FOR NAVIGATION W/ CD-MECHANISM (LEFT REAR OF LUGGAGE COMPT) EXCEPT AVANT FUSE 39 FUSE HOLDER (LEFT END OF DASH) GRN WIRE GRN/BLU WIRE GRY WIRE HOT AT ALL TIMES INSIDE LOUDSPEAKER (CENTER SPEAKER) INSTRUMENT CLUSTER LEFT ANTENNA MODULE LEFT FRONT MIDRANGE SPEAKER LEFT REAR MIDRANGE SPEAKER LEFT REAR SIDE WINDOW RIGHT REAR SIDE WINDOW NCA WIRE ORG/ WIRE ORG/BLK WIRE ORG/BRN WIRE ORG/GRN WIRE ORG/VIO WIRE PNK WIRE RADIO RADIO CONTROLS REAR WINDOW DEFOGGER W/ WINDOW ANTENNA RED WIRE RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/YEL WIRE RIGHT FRONT MIDRANGE SPEAKER RIGHT REAR MIDRANGE SPEAKER STEERING COLUMN ELECTRONIC SYSTEMS CONTROL MODULE (IF EQUIPPED) (TOP OF COLUMN) STEERING WHEEL CONTROL UNIT TELEPHONE PREPARATION WIRING (IF EQUIPPED) WHT WIRE YEL WIRE

-1 +2 AIRBAG SPIRAL SPRING/ RETURN SPRING W/ SLIP RING AMPLIFIER ANTENNA AVANT BASS LOUDSPEAKER BLK WIRE BLU WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/WHT WIRE BRN/YEL WIRE CD CHANGER UNIT COMFORT SYSTEM CENTRAL CONTROL MODULE (NEAR BASE OF LEFT FRONT SEAT, IN E-BOX) COMPUTER DATA LINES SYSTEM CONTROL MODULE FOR NAVIGATION W/ CD-MECHANISM (LEFT REAR OF LUGGAGE COMPT) EXCEPT AVANT FUSE 39 FUSE HOLDER (LEFT END OF DASH) GRN WIRE GRN/BLU WIRE GRY WIRE HOT AT ALL TIMES INSIDE LOUDSPEAKER (CENTER SPEAKER) INSTRUMENT CLUSTER LEFT ANTENNA MODULE LEFT FRONT BASS SPEAKER LEFT FRONT MIDRANGE SPEAKER LEFT REAR BASS SPEAKER LEFT REAR MIDRANGE SPEAKER LEFT REAR SIDE WINDOW RIGHT REAR SIDE WINDOW NCA WIRE ORG/ WIRE ORG/BLK WIRE ORG/BRN WIRE ORG/GRN WIRE ORG/VIO WIRE PNK WIRE RADIO RADIO CONTROLS REAR WINDOW DEFOGGER W/ WINDOW ANTENNA RED WIRE RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/YEL WIRE RIGHT FRONT BASS SPEAKER RIGHT FRONT MIDRANGE SPEAKER RIGHT REAR BASS SPEAKER RIGHT REAR MIDRANGE SPEAKER STEERING COLUMN ELECTRONIC SYSTEMS CONTROL MODULE (IF EQUIPPED) (TOP OF COLUMN) STEERING WHEEL CONTROL UNIT TELEPHONE PREPARATION WIRING (IF EQUIPPED) WHT WIRE YEL WIRE

1- 2+ LEFT FRONT BASS SPEAKER 1- 2+ LEFT REAR BASS SPEAKER 1- 2+ RIGHT FRONT BASS SPEAKER 2+ 1- RIGHT REAR BASS SPEAKER AIRBAG SPIRAL SPRING/ RETURN SPRING W/ SLIP RING ANTENNA AVANT BLK WIRE BLU WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/YEL WIRE CD CHANGER UNIT COMFORT SYSTEM CENTRAL CONTROL MODULE (NEAR BASE OF LEFT FRONT SEAT, IN E-BOX) COMPUTER DATA LINES SYSTEM CONTROL MODULE FOR NAVIGATION W/ CD-MECHANISM (LEFT REAR OF LUGGAGE COMPT) EXCEPT AVANT FUSE 39 FUSE HOLDER (LEFT END OF DASH) GRN WIRE GRN/BLU WIRE GRY WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER LEFT ANTENNA MODULE LEFT FRONT MIDRANGE SPEAKER LEFT REAR MIDRANGE SPEAKER LEFT REAR SIDE WINDOW NCA WIRE ORG/ WIRE ORG/BLK WIRE ORG/BRN WIRE ORG/GRN WIRE ORG/VIO WIRE PNK WIRE RADIO RADIO CONTROLS REAR WINDOW DEFOGGER W/ WINDOW ANTENNA RED WIRE RED/BLU WIRE RED/GRN WIRE RED/YEL WIRE RIGHT FRONT MIDRANGE SPEAKER RIGHT REAR MIDRANGE SPEAKER RIGHT REAR SIDE WINDOW STEERING COLUMN ELECTRONIC SYSTEMS CONTROL MODULE (IF EQUIPPED) (TOP OF COLUMN) STEERING WHEEL CONTROL UNIT TELEPHONE PREPARATION WIRING (IF EQUIPPED) WHT WIRE YEL WIRE