| D | Ignition/starter switch |
| E20 | Switches and instruments illumination regulator |
| J412 | Mobile telephone operating electronics control unit |
| J503 | Control unit with display for radio and navigation |
| R38 | Telephone microphone |
| R54 | Mobile telephone |
| S5 | Fuse in relay plate fuse holder |
| S10 | Fuses in relay plate fuse holder |
| T8 | 8-pin connector, black |
| T15y | 15-pin connector, green |
| T18t | 18-pin connector, black |
| T20 | 20-pin connector |
| T26 | 26-pin connector, black |
| 500 | Screw connection 1 (30), on relay plate |
| 610 | Earth point (audio), in front under centre console |
| A2 | Positive connection (15), in dash panel wiring harness |
| A19 | Connection (58d), in dash panel wiring harness |
| A21 | Connection (86s), in dash panel wiring harness |
| A52 | Positive connection 2 (30), in dash panel wiring harness |
| A74 | Connection (15a, fuse 5), in dash panel wiring harness |
| A98 | Positive connection 4 (30), in dash panel wiring harness |
| A129 | Connection (muting), in dash panel wiring harness |
| * | Applies only to models with a telephone |
| F4 | Reversing light switch |
| J104 | ABS and EDL control unit |
| J503 | Control unit with display for radio and navigation |
| L76 | Button illumination |
| R41 | CD changer |
| T10g | 10-pin connector, dark brown, coupling station left A-pillar |
| T10w | 10-pin connector, grey, right A-pillar coupling station |
| T12 | 12-pin connector, red, on CD changer |
| T20 | 20-pin connector |
| T26 | 26-pin connector, black |
| T88 | 88-pin connector, on ABS control unit |
| 309 | Earth connection 1, screening in CD changer wiring harness |
| 310 | Earth connection 2, screening in CD changer wiring harness |
| 610 | Earth point (audio), in front under centre console |
| A87 | Connection (RF (reversing light)), in dash panel wiring harness |
| A127 | Connection (rear left speed sensor), in dash panel wiring harness |
| * | Only with CD changer |
| J285 | Control unit with display in dash panel insert |
| J453 | Multi-function steering wheel control unit |
| J503 | Control unit with display for radio and navigation |
| R12 | Amplifier |
| T8 | 8-pin connector, black |
| T15d | 15-pin connector, white, coupling station left A-pillar for estate, coupling station right A-pillar for saloon |
| T16 | 16-pin connector, diagnostic socket near handbrake lever |
| T20 | 20-pin connector |
| T24 | 24-pin connector, on amplifier |
| T26 | 26-pin connector, black |
| T32a | 32-pin connector, blue, on dash panel insert |
| T32b | 32-pin connector, green, on dash panel insert |
| 346 | Earth connection (audio), in dash panel wiring harness |
| 610 | Earth point (audio), below front of centre console |
| A60 | Connection (speed signal), in instruments wiring harness |
| A76 | Connection (diagnosis wire K), in dash panel wiring harness |
| * | Only models with multi-function steering wheel |
| ** | Equipment dependent |
| J285 | Control unit with display in dash panel insert |
| J503 | Control unit with display for radio and navigation |
| J515 | Aerial selection control unit * |
| J559 | Traffic information control unit |
| R12 | Amplifier |
| R50 | Navigation aerial (GPS) |
| R51 | Radio and telephone aerial |
| S237 | Fuse in fuse holder |
| T1 | Single connector, near roof aerial |
| T1a | Single connector, near roof aerial |
| T1b | Single connector, near roof aerial |
| T2 | 2-pin connector* |
| T8 | 8-pin connector, black |
| T12t | 12-pin connector, black, on tuner box |
| T15d | 15-pin connector, white, coupling station left A-pillar for estate, coupling station right A-pillar for saloon |
| T24 | 24-pin connector, on amplifier |
| T26 | 26-pin connector, black |
| T32b | 32-pin connector, green, on dash panel insert |
| A23 | Connection (30al), in dash panel wiring harness |
| 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 |
| * | Only with aerial selection |
| R12 | Amplifier |
| R16 | Rear right treble loudspeaker |
| R17 | Rear right bass loudspeaker |
| R20 | Front left treble loudspeaker |
| R21 | Front left bass loudspeaker |
| S260 | DSP amplifier fuse |
| T4c | 4-pin connector, black, coupling station left A-pillar |
| T6d | 6-pin connector, red, right B-pillar |
| T8c | 8-pin connector, black, coupling station left A-pillar |
| T23 | 23-pin connector |
| 501 | Screw connection 2 (30), on relay plate |
| V21 | Positive connection (30), in radio/amplifier wiring harness |
| R12 | Amplifier |
| R14 | Rear left treble loudspeaker |
| R15 | Rear left bass loudspeaker |
| R22 | Front right treble loudspeaker |
| R23 | Front right bass loudspeaker |
| T4 | 4-pin connector, black, coupling station right A-pillar |
| T6c | 6-pin connector, red, left B-pillar |
| T8d | 8-pin connector, black, coupling station right A-pillar |
| T23 | 23-pin connector |
| 255 | Earth connection 1, in radio wiring harness |
| 610 | Earth point (audio), in front under centre console |
English
