Wiring Diagram AUDI TT 2000 - Radio stereo system: Chorus - Concert
| D | Ignition/starter switch |
| J218 | Combi-processor in dash panel insert |
| R | Radio |
| R41 | CD changer |
| S237 | Fuse 37 in fuse box |
| S242 | Fuse 42 in fuse box |
| T6k | 6-pin connector, green, radio connector I-2 |
| T8 | 8-pin connector, black, radio connector III |
| T8c | 8-pin connector, blue, radio connector I-3 |
| T16 | 16-pin connector, black, shelf on driver's side (diagnosis connection) |
| T32 | 32-pin connector, blue, on dash panel insert |
| 45 | Earth point, behind dash panel - centre |
| A19 | Connection (58s), in dash panel wiring harness (switch illumination) |
| A21 | Connection (86s), in dash panel wiring harness |
| A46 | Positive (+) connection (30 - from radio), in dash panel wiring harness |
| A76 | Connection (diagnosis wire K), in dash panel wiring harness |
| A108 | Connection (speed signal), in dash panel wiring harness |
| B145 | Positive (+) connection (58s), in interior wiring harness |
| V14 | Connection (screening), in CD changer wiring harness |
| * | Models with CD changer |
Wiring Diagram AUDI TT 2000 - Radio stereo system: Chorus - Concert
| J189 | Auto-check system |
| J218 | Combi-processor in dash panel insert |
| J412 | Operating electronics control unit, telephone |
| J429 | Central locking control unit |
| R | Radio |
| R4 | Loudspeaker, rear left |
| R5 | Loudspeaker, rear right |
| R15 | Bass loudspeaker, rear, centre |
| R44 | Amplifier with loudspeaker (rear, centre) |
| T1 | Single connector, brown, on radio |
| T6h | 6-pin connector, yellow, radio connector I-1 |
| T6k | 6-pin connector, green, radio connector I-2 |
| T10k | 10-pin connector, red, radio connector IV |
| T32 | 32-pin connector, blue, on dash panel insert |
| T32b | 32-pin connector, grey, on dash panel insert |
| 45 | Earth point, behind dash panel - centre |
| A116 | Connection -2- (58d), in dash panel wiring harness |
| * | Models with auto-check system |
| ** | Models with mobile phone |
| * | Models with anti-theft alarm system |
Wiring Diagram AUDI TT 2000 - Radio stereo system: Chorus - Concert
| J412 | Operating electronics control unit, telephone |
| R | Radio |
| R1 | Aerial connection |
| R11 | Aerial |
| R20 | Treble loudspeaker, front left |
| R21 | Bass loudspeaker, front left |
| R22 | Treble loudspeaker, front right |
| R23 | Bass loudspeaker, front right |
| R51 | Radio/telephone/auxiliary heater aerial |
| R86 | Mobile phone amplifier (compensator) |
| R87 | Aerial filter |
| T8a | 8-pin connector, brown, radio connector II |
| T10q | 10-pin connector, green, connector carrier, A pillar, left |
| T10r | 10-pin connector, green, connector carrier, A pillar, right |
| * | Models without telephone/mobile phone |
| ** | Models with mobile phone |

