| D | Ignition/starter switch |
| J402 | Operating electronics control unit, navigation |
| SB2 | Fuse on fuse box |
| SB38 | Fuse on fuse box |
| T8a | 8-pin connector, black, radio connector III |
| T26 | 26-pin connector, black, on operating electronics control unit, navigation |
| 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 |
| 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 |
| B135 | Connection -1- (15a), in interior wiring harness |
| * | Applies to models with 1.2 litre TDI engine, see Basic equipment for 1.2 litre TDI engine |
| F4 | Reversing light switch |
| J104 | ABS with EDL control unit |
| J402 | Operating electronics control unit, navigation |
| J412 | Operating electronics control unit, mobile phone |
| J526 | Telephone/telematics control unit |
| T8a | 8-pin connector, black, radio connector III |
| T10t | 10-pin connector, black, on telephone/telematics control unit |
| T17g | 17-pin connector, red, connector point, A pillar, left |
| T17e | 17-pin connector, blue, in footwell, front left |
| T18 | 18-pin connector, black, mobile phone interface, in front passenger's footwell |
| T20 | 20-pin connector, black, radio connector I |
| T26 | 26-pin connector, black, on operating electronics control unit, navigation |
| T46 | 46-pin connector, black, on telephone/telematics control unit |
| A87 | Connection (RF (reversing light)), in dash panel wiring harness |
| A129 | Connection (muting), in dash panel wiring harness |
| * | Only applies to models with provision for mobile phone |
| ** | Only applies to models with telematics |
| *** | Applicable for models up to May 2002 |
| R21 | Bass loudspeaker, front left |
| R23 | Bass loudspeaker, front right |
| R26 | Middle-high tone loudspeaker, front left |
| R27 | Middle-high tone loudspeaker, front right |
| J402 | Operating electronics control unit, navigation |
| T8 | 8-pin connector, brown, radio connector II |
| T20a | 20-pin connector, black, at A pillar, left |
| T20b | 20-pin connector, black, at A pillar, right |
| 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 |
| T8 | 8-pin connector, brown, radio connector II |
| T20c | 20-pin connector, black, at B pillar, left |
| T20d | 20-pin connector, black, at B pillar, right |
| 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 |
| J402 | Operating electronics control unit, navigation |
| T20 | 20-pin connector, black, radio connector I |
| T20c | 20-pin connector, black, at B pillar, left |
| T20d | 20-pin connector, black, at B pillar, right |
| 279 | Earth connection -5-, in interior wiring harness |
| 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 |
| J402 | Operating electronics control unit, navigation |
| T20 | 20-pin connector, black, radio connector I |
| T20a | 20-pin connector, black, at A pillar, left |
| T20b | 20-pin connector, black, at A pillar, right |
| 133 | Earth connection, in loudspeaker wiring harness |
| 279 | Earth connection -5-, in interior wiring harness |
| * | Applicable for models up to May 2002 |
| 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 |
| J402 | Operating electronics control unit, navigation |
| T20c | 20-pin connector, black, at B pillar, left |
| T20d | 20-pin connector, black, at B pillar, right |
| E1 | Lighting switch |
| J402 | Operating electronics control unit, navigation |
| J415 | Navigation/TV tuner |
| R1 | Aerial connection |
| R94 | Navigation interface |
| T8a | 8-pin connector, black, radio connector III |
| T26 | 26-pin connector, black, on operating electronics control unit, navigation |
| T54 | 54-pin connector, black, on navigation/TV tuner |
| 277 | Earth connection -3-, in interior wiring harness |
| A148 | Connection (navigation CAN bus, high), in dash panel wiring harness |
| A149 | Connection (navigation CAN bus, low), in dash panel wiring harness |
| B145 | Positive (+) connection (58b), in interior wiring harness |
| * | Only applies to models with radio navigation system (RNS-D), with TV receiver |
| J285 | Control unit with display in dash panel insert |
| J402 | Operating electronics control unit, navigation |
| J415 | Navigation/TV tuner |
| R94 | Navigation interface |
| T8a | 8-pin connector, black, radio connector III |
| T16 | 16-pin connector, black, diagnostic connector |
| T32 | 32-pin connector, blue, on dash panel insert |
| T32a | 32-pin connector, green, on dash panel insert |
| T32b | 32-pin connector, grey, on dash panel insert |
| T54 | 54-pin connector, black, on navigation/TV tuner |
| 277 | Earth connection -3-, in interior wiring harness |
| A27 | Connection (speed signal), in dash panel wiring harness |
| A76 | Connection (diagnosis wire K), 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 |
| * | Only applies to models with driver information system |
