| J218 | Combi-processor in dash panel insert |
| R | Radio |
| S237 | Fuse 37 in fuse box |
| T1o | Single connector, behind dash panel, centre |
| T8f | 8-pin connector, black, radio connector III |
| T10x | 10-pin connector, green, connector point, A pillar, right |
| T16a | 16-pin connector, diagnosis connection |
| T32 | 32-pin connector, blue, on dash panel insert |
| 610 | Earth point (radio), below centre console, front |
| A19 | Connection (58s), in dash panel wiring harness (switch illumination) |
| A27 | Connection (speed signal), in dash panel wiring harness |
| A50 | Positive (+) connection (30a), in dash panel wiring harness |
| A76 | Connection (diagnosis wire K), in dash panel wiring harness |
| V1 | Positive (+) connection (30), in rear loudspeaker wiring harness |
| * | Saloon models |
| ** | Avant models |
| D | gnition/starter switch |
| J218 | Combi-processor in dash panel insert |
| R | Radio |
| R39 | Telephone/navigation systems loudspeaker |
| R41 | CD changer |
| S5 | Fuse in fuse box |
| S243 | Fuse 43 in fuse box |
| T2ar | 2-pin connector, black, behind dash panel, centre |
| T2av | 2-pin connector, black, for loudspeaker, B pillar, left |
| T8e | 8-pin connector, brown, radio connector II |
| T8f | 8-pin connector, black, radio connector III |
| T8g | 8-pin connector, blue, radio connector I-3 |
| T10z | 10-pin connector, red, radio connector IV |
| T32 | 32-pin connector, blue, on dash panel insert |
| A2 | Positive (+) connection (15), in dash panel wiring harness |
| A8 | Positive (+) connection (58d), in dash panel wiring harness (display illumination) |
| A20 | Connection (15a), in dash panel wiring harness |
| V14 | Connection (screening), in CD changer wiring harness |
| * | Models with CD changer |
| ** | Models with telephone / mobile phone |
| E15 | Heated rear window switch |
| J401 | Navigation system with CD drive control unit |
| R | Radio |
| R1 | Aerial connection |
| R11 | Aerial |
| R24 | Aerial amplifier |
| R45 | Aerial amplifier (telephone/radio) |
| T10z | 10-pin connector, red, radio connector IV |
| T10ba | 10-pin connector, blue, connector point, A pillar, left |
| T15w | 15-pin connector, green, connector point, A pillar, right |
| T20b | 20-pin connector, black, on navigation control unit |
| Z24 | Heated rear window with window aerial |
| 75 | Earth point, right rear pillar |
| * | Rear window aerial |
| ** | Sunroof aerial |
| *** | Models with navigation system 'NS Low', without radio navigation system |
| # | Saloon models |
| ## | Avant models |
| J218 | Combi-processor in dash panel insert |
| J446 | Parking aid control unit |
| J526 | Telephone/telematics control unit |
| R | Radio |
| T6x | 6-pin connector, green, radio connector I-2 |
| T10x | 10-pin connector, green, connector point, A pillar, right |
| T15q | 15-pin connector, white, connector point, A pillar, right |
| T15s | 15-pin connector, blue, connector point, A pillar, left |
| T23 | 23-pin connector, black, on parking aid control unit |
| T32a | 32-pin connector, green, on dash panel insert |
| T32c | 32-pin connector, grey, on dash panel insert |
| T46 | 46-pin connector, connector 1, telematics |
| A146 | Connection (convenience CAN bus, high), in dash panel wiring harness |
| A147 | Connection (convenience CAN bus, low), in dash panel wiring harness |
| A148 | Connection (navigation CAN bus, high), in dash panel wiring harness |
| A149 | Connection (navigation CAN bus, low), in dash panel wiring harness |
| • | CAN bus (data wire) |
| * | Only models with auto-check system |
| ** | Models without auto-check system |
| # | Models with navigation system 'NS Low' |
| ## | Models with telematics |
| ### | Only models with ultrasonic parking aid |
| J412 | Operating electronics control unit, telephone |
| J429 | Central locking control unit |
| J453 | Multi-function steering wheel control unit |
| J526 | Telephone/telematics control unit |
| R | Radio |
| R43 | Amplifier with bass loudspeaker (luggage compartment, right) |
| T1e | Single connector, on radio |
| T6w | 6-pin connector, yellow, radio connector I-1 |
| T6x | 6-pin connector, green, radio connector I-2 |
| T10x | 10-pin connector, green, connector point, A pillar, right |
| T10z | 10-pin connector, red, radio connector IV |
| T10bg | 10-pin connector, connector 2, on telematics control unit |
| T15s | 15-pin connector, blue, connector point, A pillar, left |
| T17 | 17-pin connector, orange, connector point, A pillar, right |
| T46 | 46-pin connector, connector 1, on telematics control unit |
| 133 | Earth connection, in loudspeaker wiring harness |
| 610 | Earth point (radio), below centre console, front |
| * | Models with telematics |
| ** | Models with mobile phone |
| *** | Models with multi-function steering wheel |
| # | Models with anti-theft alarm system |
| R15 | Bass loudspeaker, rear left |
| R17 | Bass loudspeaker, rear right |
| R21 | Bass loudspeaker, front left |
| R23 | Bass loudspeaker, front right |
| R26 | Middle-high tone loudspeaker, front left |
| R27 | Middle-high tone loudspeaker, front right |
| R34 | Middle-treble tone loudspeaker, rear left |
| R35 | Middle-treble tone loudspeaker, rear right |
| R43 | Amplifier with bass loudspeaker (luggage compartment, right) |
| T3ae | 3-pin connector, brown, connector point, A pillar, left |
| T3af | 3-pin connector, brown, connector point, A pillar, right |
| T3ag | 3-pin connector, blue, in B pillar, left |
| T3ah | 3-pin connector, blue, in B pillar, right |
| T3al | 3-pin connector, black, in driver's door |
| T3am | 3-pin connector, black, in front passenger's door |
| T3an | 3-pin connector, black, in door, rear left |
| T3ao | 3-pin connector, black, in door, rear right |
| T4ax | 4-pin connector, on Bose power amplifier |
| * | Bass loudspeaker (saloon models) |
| ** | Bass loudspeaker (Avant models) |
| E15 | Heated rear window switch |
| J515 | Aerial selection control unit |
| R82 | Aerial amplifier 1, TV |
| R83 | Aerial amplifier 2, TV |
| R84 | Aerial amplifier 3, TV |
| R85 | Aerial amplifier 4, TV |
| T3bh | 3-pin connector, black, on aerial selection control unit |
| T10ab | 10-pin connector, purple, connector point, A pillar, right |
| T10ba | 10-pin connector, blue, connector point, A pillar, left |
| Z1 | Heated rear window |
| Z24 | Heated rear window with window aerial |
| 75 | Earth point, right rear pillar |
| 610 | Earth point (radio), below centre console, front |
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