Wiring Diagram AUDI TT 2001 - Provision for radio
| D | Ignition/starter switch |
| E15 | Heated rear window switch |
| J218 | Combi-processor in dash panel insert |
| R1 | Aerial connection |
| R45 | Aerial amplifier (telephone/radio) |
| S237 | Fuse in fuse box |
| S242 | Fuse in fuse box |
| T8 | 8-pin connector, black, radio connector III |
| T32 | 32-pin connector, blue, on dash panel insert |
| Z24 | Heated rear window with window aerial |
| 45 | Earth point, behind dash panel - centre |
| 98 | Earth connection, in tailgate/boot lid wiring harness |
| A19 | Connection (58d), in dash panel wiring harness |
| A21 | Connection (86s), in dash panel wiring harness |
| B145 | Positive (+) connection (58b), in interior wiring harness |
Wiring Diagram AUDI TT 2001 - Provision for radio
| R14 | Treble loudspeaker, rear left |
| R15 | Bass loudspeaker, rear left |
| R16 | Treble loudspeaker, rear right |
| R17 | Bass loudspeaker, rear right |
| R20 | Treble loudspeaker, front left |
| R21 | Bass loudspeaker, front left |
| R22 | Treble loudspeaker, front right |
| R23 | Bass loudspeaker, front right |
| 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 |
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