| A | Battery |
| B | Starter |
| D | Ignition/starter switch |
| R | Radio |
| S88 | Strip fuse |
| SB2 | Fuse on fuse box |
| SB38 | Fuse on fuse box |
| T8a | 8-pin connector, black, radio connector III |
| T10i | 10-pin connector, black, connector point, A pillar, right |
| 65 | Earth point, left longitudinal member, rear |
| 279 | Earth connection -5-, in interior wiring harness |
| 500 | Screw connection -1- (30), on relay plate |
| A2 | Positive (+) connection (15), 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 |
| A98 | Positive (+) connection -4- (30), in dash panel wiring harness |
| B135 | Connection -1- (15a), in interior wiring harness |
| B156 | Positive (+) connection (30a), in interior wiring harness |
| * | Only models with active loudspeakers |
| ** | Only models with Bose loudspeakers |
| E1 | Lighting switch |
| J285 | Control unit with display in dash panel insert |
| R | Radio |
| R21 | Bass loudspeaker, front left |
| R23 | Bass loudspeaker, front right |
| R26 | Middle-high tone loudspeaker, front left |
| R27 | Middle-high tone loudspeaker, front right |
| T2 | 2-pin connector, black, at A pillar, right |
| T2a | 2-pin connector, black, at A pillar, left |
| T8 | 8-pin connector, brown, radio connector II |
| T8a | 8-pin connector, black, radio connector III |
| T10d | 10-pin connector, red, radio connector IV |
| T16 | 16-pin connector, black, diagnostic connector |
| T32 | 32-pin connector, blue, on dash panel insert |
| A27 | Connection (speed signal), in dash panel wiring harness |
| A76 | Connection (diagnosis wire K), in dash panel wiring harness |
| B116 | Connection (58d), in interior wiring harness |
| B145 | Positive (+) connection (58b), in interior wiring harness |
| R | Radio |
| R15 | Bass loudspeaker, rear left |
| R17 | Bass loudspeaker, rear right |
| R34 | Middle-treble tone loudspeaker, rear left |
| R35 | Middle-treble tone loudspeaker, rear right |
| T2b | 2-pin connector, black, at B pillar, right |
| T2c | 2-pin connector, black, at B pillar, left |
| T8 | 8-pin connector, brown, radio connector II |
| R | Radio |
| R12 | Amplifier |
| R15 | Bass loudspeaker, rear left |
| R17 | Bass loudspeaker, rear right |
| R34 | Middle-treble tone loudspeaker, rear left |
| R35 | Middle-treble tone loudspeaker, rear right |
| T2b | 2-pin connector, black, at B pillar, left |
| T2c | 2-pin connector, black, at B pillar, right |
| T10d | 10-pin connector, red, radio connector IV |
| T18 | 18-pin connector, black, mobile phone interface, in front passenger's footwell |
| T20 | 20-pin connector, black, radio connector I |
| 279 | Earth connection -5-, in interior wiring harness |
| * | Only models with provision for mobile phone |
| R | Radio |
| R12 | Amplifier |
| R21 | Bass loudspeaker, front left |
| R23 | Bass loudspeaker, front right |
| R26 | Middle-high tone loudspeaker, front left |
| R27 | Middle-high tone loudspeaker, front right |
| T2 | 2-pin connector, black, at A pillar, right |
| T2a | 2-pin connector, black, at A pillar, left |
| T10d | 10-pin connector, red, radio connector IV |
| T18 | 18-pin connector, black, mobile phone interface, in front passenger's footwell |
| T20 | 20-pin connector, black, radio connector I |
| 133 | Earth connection, in loudspeaker wiring harness |
| 279 | Earth connection -5-, in interior wiring harness |
| A129 | Connection (muting), in dash panel wiring harness |
| * | Only models with provision for mobile phone |
| R | Radio |
| R12 | Amplifier |
| R15 | Bass loudspeaker, rear left |
| R17 | Bass loudspeaker, rear right |
| R34 | Middle-treble tone loudspeaker, rear left |
| R35 | Middle-treble tone loudspeaker, rear right |
| R100 | Bass loudspeaker (subwoofer), in luggage compartment, in intermediate floor panel |
| T20c | 20-pin connector, black, at B pillar, left |
| T20d | 20-pin connector, black, at B pillar, right |
| E15 | Heated rear window switch |
| E87 | Control and display unit for air conditioner/Climatronic |
| R | Radio |
| R11 | Aerial |
| R18 | Frequency switch, left |
| R19 | Frequency switch, right |
| R24 | Aerial amplifier |
| Z1 | Heated rear window |
| Z24 | Heated rear window with window aerial |
| 52 | Earth point, in tailgate/boot lid, left |
| 73 | Earth point, rear roof rail |
| B108 | Earth connection, in rear right interior wiring harness |
| B180 | Connection (heated rear window), in interior wiring harness |
| B248 | Connection -2- (heated rear window), in interior wiring harness |
| * | Does not apply to models with air conditioner |
| ** | Only models with air conditioner |
