| D | Ignition/starter switch |
| J402 | Operating electronics control unit, navigation |
| S239 | Fuse in fuse box |
| T8 | 8-pin connector, black, radio connector III |
| T26 | 26-pin connector, black, on operating electronics control unit, navigation |
| 346 | Earth connection (audio), in dash panel wiring harness |
| 501 | Screw connection -2- (30), on relay plate |
| 610 | Earth point (audio), front below centre console |
| A2 | Positive (+) connection (15), in dash panel wiring harness |
| A21 | Connection (86s), in dash panel wiring harness |
| A32 | Positive (+) connection (30), in dash panel wiring harness |
| A46 | Positive (+) connection (30 - from radio), in dash panel wiring harness |
| A57 | Positive (+) connection -3- (30), in dash panel wiring harness |
| F4 | Reversing light switch |
| J393 | Convenience system central control unit |
| J402 | Operating electronics control unit, navigation |
| T8 | 8-pin connector, black, radio connector III |
| T17d | 17-pin connector, red, connector point, electronics box, plenum chamber |
| T20d | 20-pin connector, black, radio connector I |
| T26 | 26-pin connector, black, on operating electronics control unit, navigation |
| A87 | Connection (RF (reversing light)), in dash panel wiring harness |
| A129 | Connection (muting), in dash panel wiring harness |
| V49 | Connection (low frequency, NF +), in communication wiring harness |
| V50 | Connection (low frequency, NF -), in communication wiring harness |
| * | See applicable Current Flow Diagram: Telephone |
| J402 | Operating electronics control unit, navigation |
| R12 | Amplifier |
| R21 | Bass loudspeaker, front left |
| R23 | Bass loudspeaker, front right |
| T20 | 20-pin connector, black, door, A pillar, left |
| T20a | 20-pin connector, black, door, A pillar, right |
| T20d | 20-pin connector, black, radio connector I |
| 133 | Earth connection, in loudspeaker wiring harness |
| 346 | Earth connection (audio), in dash panel wiring harness |
| B465 | Connection -1-, in main wiring harness |
| B466 | Connection -2-, in main wiring harness |
| J402 | Operating electronics control unit, navigation |
| R12 | Amplifier |
| R20 | Treble loudspeaker, front left |
| R22 | Treble loudspeaker, front right |
| R70 | Internal loudspeaker (centre loudspeaker) |
| R103 | Mid-range loudspeaker, front left |
| R104 | Mid-range loudspeaker, front right |
| T20 | 20-pin connector, black, door, A pillar, left |
| T20a | 20-pin connector, black, door, A pillar, right |
| B189 | Connection (positive (+), loudspeaker, front right), in interior wiring harness |
| B190 | Connection (negative (-), loudspeaker, front right), in interior wiring harness |
| B191 | Connection (positive (+), loudspeaker, front left), in interior wiring harness |
| B192 | Connection (negative (-), loudspeaker, front left), in interior wiring harness |
| J402 | Operating electronics control unit, navigation |
| J415 | Navigation/TV tuner |
| R1 | Aerial connection |
| R94 | Navigation interface |
| R108 | Aerial module, left |
| R109 | Aerial module, right |
| T26 | 26-pin connector, black, on operating electronics control unit, navigation |
| T54 | 54-pin connector, black, on navigation/TV tuner |
| 346 | Earth connection (audio), 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 |
| J104 | ABS with EDL control unit |
| J402 | Operating electronics control unit, navigation |
| J415 | Navigation/TV tuner |
| R50 | Navigation aerial (GPS) |
| R94 | Navigation interface |
| T8 | 8-pin connector, black, radio connector III |
| T16 | 16-pin connector, black, diagnostic connector |
| T17 | 17-pin connector, black, connector point, A pillar, left |
| T17b | 17-pin connector, green, connector point, A pillar, left |
| T26 | 26-pin connector, black, on operating electronics control unit, navigation |
| T54 | 54-pin connector, black, on navigation/TV tuner |
| A27 | Connection (speed signal), in dash panel wiring harness |
| A127 | Connection (rear left speed sensor), in dash panel wiring harness |
| A159 | Connection (L), in dash panel wiring harness |
| * | As of July 2002 no longer fitted |
| ** | From July 2002 onwards |
| *** | See applicable Current Flow Diagram: ABS |
| J285 | Control unit with display in dash panel insert |
| J402 | Operating electronics control unit, navigation |
| R94 | Navigation interface |
| T8 | 8-pin connector, black, radio connector III |
| T32 | 32-pin connector, blue, on dash panel insert |
| T32a | 32-pin connector, green, on dash panel insert |
| 346 | Earth connection (audio), in dash panel wiring harness |
| A175 | Connection (58s), in dash panel wiring harness |
| A178 | Connection (infotainment CAN bus, high), in dash panel wiring harness |
| A179 | Connection (infotainment CAN bus, low), in dash panel wiring harness |
| * | As of July 2002 no longer fitted |