| Multi-pin connector, 23-pin |
| 2 - | Bass loudspeaker, front left -R21- (+) |
| 3 - | Bass loudspeaker, front left -R21- (–) |
| 6 - | Bass loudspeaker, front right -R23- (+) |
| 9 - | Bass loudspeaker, front right -R23- (–) |
| 12 - | Loudspeaker, rear left -R4- (+) |
| 13 - | Switched positive from radio -R- / navigation operating electronics control unit -J402- / control unit with display for radio and navigation -J503- |
| 14 - | Signal (rear left) from radio -R- / navigation operating electronics control unit -J402- / control unit with display for radio and navigation -J503- |
| 15 - | Loudspeaker, rear left -R4- (-) |
| 16 - | Signal (front left) from radio -R- / navigation operating electronics control unit -J402- / control unit with display for radio and navigation -J503- |
| 17 - | Signal (rear right) from radio -R- / navigation operating electronics control unit -J402- / control unit with display for radio and navigation -J503- |
| 18 - | Loudspeaker, rear right -R5- (-) |
| 19 - | Signal earth from radio -R- / navigation operating electronics control unit -J402- / control unit with display for radio and navigation -J503- |
| 20 - | Signal (front right) from radio -R- / navigation operating electronics control unit -J402- / control unit with display for radio and navigation -J503- |
| 21 - | Loudspeaker, rear right -R5- (+) |
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Note
