| J218 | Combi-processor in dash panel insert |
| K | Diagnosis connection |
| R | Radio |
| S237 | Fuse in fuse box |
| 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 |
| 44 | Earth point, lower part of left A-pillar |
| 199 | Earth connection -3-, in dash panel wiring harness |
| 213 | Earth connection -4-, in dash panel wiring harness |
| 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 |
| * | Automatic aerial |
| D | Ignition/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 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 |
| J402 | Operating electronics control unit, navigation |
| R | Radio |
| R1 | Aerial connection |
| R11 | Aerial |
| R24 | Aerial amplifier |
| R45 | Aerial amplifier (telephone/radio) |
| T6a | 6-pin connector, blue, connector point, A pillar, left |
| T8f | 8-pin connector, black, radio connector III |
| T10x | 10-pin connector, green, connector point, A pillar, right |
| T10z | 10-pin connector, red, radio connector IV |
| T26 | 26-pin connector, on operating electronics control unit, navigation |
| V21 | Aerial motor |
| Z24 | Heated rear window with window aerial |
| 50 | Earth point, on left luggage compartment |
| 75 | Earth point, right rear pillar |
| * | Rear window aerial |
| ** | Automatic aerial |
| *** | Models with navigation system, without radio navigation system |
| # | Saloon models |
| ## | Avant models |
| J218 | Combi-processor in dash panel insert |
| J412 | Operating electronics control unit, telephone |
| J429 | Central locking control unit |
| J453 | Multi-function steering wheel control unit |
| R | Radio |
| R36 | Telephone transmitter and receiver unit |
| 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 |
| T15s | 15-pin connector, blue, connector point, A pillar, left |
| T15v | 15-pin connector, orange, connector point, A pillar, right |
| T32c | 32-pin connector, grey, on dash panel insert |
| 44 | Earth point, lower part of left A pillar |
| 133 | Earth connection, in loudspeaker wiring harness |
| * | Models with telephone |
| ** | Models with mobile phone |
| *** | Models with multi-function steering wheel |
| # | Does not apply to models for Germany |
| 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) |
