| D | Ignition/starter switch |
| J59 | X contact relief relay |
| J285 | Control unit with display in dash panel insert |
| R | Radio |
| S237 | Fuse in fuse box |
| T8 | 8-pin connector, black, on radio |
| T32a | 32-pin connector, blue, on dash panel insert |
| 501 | Screw connection -2- (30), on relay plate |
| 610 | Earth point (audio), front below centre console |
| A21 | Connection (86s), in dash panel wiring harness |
| A23 | Connection (30al), in dash panel wiring harness |
| A60 | Connection (vehicle speed signal), in instruments wiring harness |
| E20 | Switches and instruments - lighting control |
| R | Radio |
| R20 | Treble loudspeaker, front left, in door |
| R21 | Bass loudspeaker, front left, in door |
| R22 | Treble loudspeaker, front right, in door |
| R23 | Bass loudspeaker, front right, in door |
| T4 | 4-pin connector, black, connector point, right A pillar |
| T4a | 4-pin connector, black, connector point, right A pillar |
| T4b | 4-pin connector, black, connector point, left A pillar |
| T4c | 4-pin connector, black, connector point, left A pillar |
| T8 | 8-pin connector, black, on radio |
| T8a | 8-pin connector, on radio |
| T8c | 8-pin connector, black, connector point, left A pillar |
| T8d | 8-pin connector, black, connector point, right A pillar |
| T16 | 16-pin connector, self-diagnosis connection, near handbrake lever |
| A19 | Connection (58d), in dash panel wiring harness |
| A76 | Connection (diagnosis wire K), in dash panel wiring harness |
| R | Radio |
| R14 | Treble loudspeaker, rear left, in door |
| R15 | Bass loudspeaker, rear left, in door |
| R16 | Treble loudspeaker, rear right, in door |
| R17 | Bass loudspeaker, rear right, in door |
| T4 | 4-pin connector, black, connector point, right A pillar |
| T4b | 4-pin connector, black, connector point, left A pillar |
| T6c | 6-pin connector, on left B-pillar |
| T6d | 6-pin connector, on right B-pillar |
| T8a | 8-pin connector, brown, on radio |
| T8c | 8-pin connector, black, connector point, left A pillar |
| T8d | 8-pin connector, black, connector point, right A pillar |
| * | Only with 8 loudspeakers (radio 'gamma') |
| J285 | Control unit with display in dash panel insert |
| R | Radio |
| R11 | Aerial |
| R24 | Aerial amplifier |
| R41 | CD changer |
| T10g | 10-pin connector, dark brown, connector point left A-pillar |
| T12 | 12-pin connector, red, on CD changer |
| T20 | 20-pin connector, on TV/radio/navigation control unit |
| T32b | 32-pin connector, green, on dash panel insert |
| 309 | Earth connection -1-, screening, in CD changer wiring harness |
| 310 | Earth connection -2-, screening, in CD changer wiring harness |
| 610 | Earth point (audio), front below centre console |
| * | Only with CD-changer |
| ** | Only models with multi-function display |