| R | Radio |
| R12 | Amplifier |
| 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-high tone loudspeaker, rear left |
| R35 | Middle-high tone loudspeaker, rear right |
| T3ac | 3-pin connector, yellow, at B pillar, right |
| T3ad | 3-pin connector, yellow, at B pillar, left |
| T3ae | 3-pin connector, black, in door, rear right |
| T3af | 3-pin connector, black, in door, rear left |
| T6m | 6-pin connector, yellow, on radio |
| T6n | 6-pin connector, yellow, at A pillar, left |
| T6u | 6-pin connector, yellow, at A pillar, right |
| 44 | Earth point, lower part of left A-pillar |
| 133 | Earth point, in loudspeaker wiring harness |
| Note:For CD changer see Current Flow Diagram: 'Radio Chorus, radio Concert with CD changer' |
| D | Ignition/starter switch |
| E15 | Heated rear window switch |
| R | Radio |
| R2 | Loudspeaker, front left |
| R3 | Loudspeaker, front right |
| R24 | Aerial amplifier |
| R36 | Telephone transmitter and receiver unit |
| T1l | Single connector, brown, on radio |
| T6e | 6-pin connector, blue, left connector point, A pillar |
| T6n | 6-pin connector, yellow, at A pillar, left |
| T6u | 6-pin connector, yellow, at A pillar, right |
| T8a | 8-pin connector, black, on radio |
| T8b | 8-pin connector, brown, on radio |
| T10i | 10-pin connector, black, in centre console |
| T10af | 10-pin connector, red, on radio |
| T10ag | 10-pin connector, brown, in centre console |
| T15a | 15-pin connector, black, right connector point, A pillar |
| V94 | Central locking motor with control unit for interior lights switch-off delay |
| Z24 | Heated rear window with window aerial |
| A21 | Connection (86s), in dash panel wiring harness |
| A57 | Connection (30a), in dash panel wiring harness |
| V13 | Positive (+) connection (30), in loudspeaker wiring harness |
| * | Only models with telephone |
| ** | Only models with radio |
| D | Ignition/starter switch |
| J218 | Combi-processor in dash panel insert |
| J402 | Operating electronics control unit, navigation |
| R | Radio |
| T6x | 6-pin connector, green, on radio |
| T8a | 8-pin connector, black, on radio |
| T10i | 10-pin connector, black, in centre console |
| T10af | 10-pin connector, red, on radio |
| T16 | 16-pin connector, in centre console rear |
| T32 | 32-pin connector, blue, on dash panel insert |
| T32a | 32-pin connector, green, on dash panel insert |
| 133 | Earth point, in loudspeaker wiring harness |
| A4 | Positive (+) connection (58b), in dash panel wiring harness |
| A19 | Connection (58d), in dash panel wiring harness |
| A60 | Connection (vehicle speed signal), in dash panel wiring harness |
| A74 | Connection (15a, fuse 5), in dash panel wiring harness |
| A76 | Connection (diagnosis wire K), in dash panel wiring harness |
| A117 | Connection (enable), in dash panel wiring harness |
| A118 | Connection (data), in dash panel wiring harness |
| A119 | Connection (clock), in dash panel wiring harness |
| * | Only models with navigation system |
