| D | Ignition/starter switch |
| J415 | Navigation/TV tuner |
| J666 | Control unit for internet access |
| S237 | Fuse in fuse box |
| T54a | 54-pin connector, black, on internet access control unit |
| T54t | 54-pin connector, black, on navigation/TV tuner |
| 500 | Screw connection -1- (30), on relay plate |
| A2 | Positive (+) connection (15), in dash panel wiring harness |
| A23 | Connection (30al), in dash panel wiring harness |
| * | Only models with saloon |
| J415 | Navigation/TV tuner |
| J506 | Control unit with display for TV/radio/navigation |
| J666 | Control unit for internet access |
| T10u | 10-pin connector, on control units |
| T16 | 16-pin connector |
| T54a | 54-pin connector, black, on internet access control unit |
| T54t | 54-pin connector, black, on navigation/TV tuner |
| 346 | Earth connection (audio), in dash panel wiring harness |
| 610 | Earth point (audio), front below centre console |
| A76 | Connection (diagnosis wire K), in dash panel wiring harness |
| * | Only models with saloon |
| D | Ignition/starter switch |
| E | Lighting switch |
| J285 | Control unit with display in dash panel insert |
| J506 | Control unit with display for TV/radio/navigation |
| J666 | Control unit for internet access |
| R | Radio |
| T10u | 10-pin connector, on control units |
| T26 | 26-pin connector, on TV/radio/navigation control unit |
| T32a | 32-pin connector, blue, on dash panel insert |
| T54a | 54-pin connector, black, on internet access control unit |
| A19 | Connection (58d), in dash panel wiring harness |
| A21 | Connection (86s), in dash panel wiring harness |
| A26 | Connection (door contact switch/driver's side), 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 models with saloon |