Bose Amplifier
The BOSE amplifier features six frequency response-optimised loudspeaker final stages with 25 watt output each for a loudspeaker supply impedance of 2 Ω. Four loudspeaker final stages are allocated to the loudspeakers in the front and rear left and right doors. Two loudspeaker final stages are connected to the bass loudspeakers at the rear of the vehicle.
The BOSE amplifier is connected to the radio, loudspeakers and the power supply via a 25-pin wiring harness plug, and it is switched on and off via the radio.
- BOSE amplifier
- Wiring harness plug connection
| Vehicle model | Catalogue no. | Part no. |
|---|
| Saloon | 17 82 006 | 09 146 034 |
| Estate | 17 82 002 | 90 563 171 |
Loudspeakers (Bose Sound System)
BOSE sound system - survey of loudspeakers:
| Installation position | Loudspeaker description | Quantity |
|---|
| Front doors, left, right | 1 wide band loudspeaker, 168 mm diameter, 1 treble speaker in outside mirror fastening 25 watt, 65 Hz - 20 KHz | 4 |
| Rear doors, left, right | 1 wide band loudspeaker, 90 mm diameter 25 watt, 15 Hz - 20 KHz | 2 |
| Rear shelf (Saloon only) | 2 bass loudspeakers, 168 mm diameter 25 watt, 50 Hz - 1 KHz | 2 |
| Load compartment, rear left side (Estate only) | 1 box with twin coil bass loudspeaker 2 x 25 watt, 35 Hz - 200 Hz | 1 |
Block Diagram
| 15 | Ignition ON (terminal 15) |
|---|
| 30 | Battery positive (terminal 30) |
| 31 | Ground (terminal 31) |
| 58 D | Dimmable illumination |
| H1 | Radio CCR 800 |
| H37 | Wide band loudspeaker, front left door |
| H38 | Wide band loudspeaker, front right door |
| H39 | Wide band loudspeaker, rear left door |
| H40 | Wide band loudspeaker, rear right door |
| H52 | Treble loudspeaker, front left door |
| H53 | Treble loudspeaker, front right door |
| H54 | Telephone audio input, radio mute |
| H61 | Bass loudspeaker, rear left (only Saloon, single bass loudspeaker in rear shelf) |
| H62 | Bass loudspeaker, rear right (only Saloon, single bass loudspeaker in rear shelf) |
| H61/H62 | Bass loudspeaker, rear left (only Estate, box with 1 twin coil bass loudspeaker) |
| S67 | Radio steering wheel remote control |
| U15/U16 | Triple-Info-Display/Multi-Info-Display |
| U17 | Roof antenna amplifier (Estate) |
| U18 | Rear screen antenna amplifier (Saloon) |
| U23 | BOSE amplifier (sound processor) |
| U24 | CD changer |
| K50/K95 | ABS control unit, odometer signal for speed-dependent volume control |
| XD | Diagnostic plug |
9.5 Block Diagram
Terminal Assignment, Wiring Harness Plug, Bose Amplifier, 25-pin
| Ter. 1 | Output (+) rear right bass loudspeaker |
|---|
| Ter. 2 | Output (-) rear right bass loudspeaker |
| Ter. 3 | Input (-) front left audio signal |
| Ter. 4 | Input (-) front right audio signal |
| Ter. 5 | Input (-) rear left audio signal |
| Ter. 6 | Input (-) rear right audio signal |
| Ter. 7 | Input (+) rear right audio signal |
| Ter. 8 | Input (+) rear left audio signal |
| Ter. 9 | Input (+) front right audio signal |
| Ter. 10 | Input (+) front left audio signal |
| Ter. 11 | Unoccupied |
| Ter. 12 | Unoccupied |
| Ter. 13 | Battery positive |
9.6 Terminal Assignment, Wiring Harness Plug, Bose Amplifier, 25-pin
| Ter. 14 | Output (+) rear left bass loudspeaker |
|---|
| Ter. 15 | Output (-) rear left bass loudspeaker |
| Ter. 16 | Output (-) front left door loudspeaker |
| Ter. 17 | Output (+) front left door loudspeaker |
| Ter. 18 | Output (+) front right door loudspeaker |
| Ter. 19 | Output (-) front right door loudspeaker |
| Ter. 20 | Output (+) rear left door loudspeaker |
| Ter. 21 | Output (-) rear left door loudspeaker |
| Ter. 22 | Output (+) rear right door loudspeaker |
| Ter. 23 | Output (-) rear right door loudspeaker |
| Ter. 24 | Ground (Ter. 31) |
| Ter. 25 | Activation signal from radio (+ 12V) |
Excerpt from the Circuit Diagram, Radio CCR 800 with Bose Sound System
| E19 | Heated rear screen antenna (Saloon) |
|---|
| F6 | Fuse 20A (terminal 30) |
| F12 | Fuse 20A (terminal 30) |
| H1 | Radio CCR 800 |
| H37 | Wide band loudspeaker, front left door |
| H38 | Wide band loudspeaker, front right door |
| H39 | Wide band loudspeaker, rear left door |
| H40 | Wide band loudspeaker, rear right door |
| H52 | Treble loudspeaker, front left door |
| H53 | Treble loudspeaker, front right door |
| H61 | Bass loudspeaker, rear left (Saloon) |
| H62 | Bass loudspeaker, rear right (Saloon) |
| H61/H62 | Bass loudspeaker, rear left (Estate, box with 1 twin coil bass loudspeaker) |
| ID | Triple-Info-Display/Multi Info Display |
| S1 | Starter switch |
| S67 | Steering wheel remote control |
| TEL | Telephone |
| U17 | Roof antenna amplifier (Estate) |
| U18 | Rear screen antenna amplifier |
| U23 | BOSE amplifier |
| U24 | CD changer |
| WEC | Odometer signal |
| XD | Diagnostic plug |
| X1 | Instrument panel& body, 107-pin |
| X7 | Instrument panel& radio, rear, 42-pin |
| X11 | Body& driver's door, 40-pin |
| X12 | Body& co-driver's door, 40-pin |
| X13 | Body& rear left door, 15-pin |
| X14 | Body& rear right door, 15-pin |
9.7 Excerpt from the Circuit Diagram, Radio CCR 800 with Bose Sound System
