| Pin | Type | Description / Signal type | Connection /
Measuring notes |
|---|
| 1 | M | LH rear woofer ground control | Left rear speaker |
| | | |
| 2 | A | LH rear woofer voltage control | Left rear speaker |
| | | |
| 3 | M | LH front woofer ground control | Left front speaker |
| | | |
| 4 | A | LH front woofer voltage control | Left front speaker |
| | | |
| 5 | E | Terminal 30 | Fuse F72 |
| | | |
| 6 | | Not used | |
| | | |
| 7 | | Not used | |
| | | |
| 8 | A | AF signal + | N9 Radio/hifi |
| | | |
| 9 | A | AF signal + | N9 Radio/hifi |
| | | |
| 10 | E | Radio ON/antenna signal | N9 Radio/hifi |
| | | |
| 11 | A | RH front tweeter voltage control | Right front speaker |
| | | |
| 12 | M | RH front tweeter ground control | Right front speaker |
| | | |
| 13 | A | Positive activation, rear right medium-range speaker/tweeter | Right rear speaker |
| | | |
| 14 | | Not used | |
| | | |
| 15 | | Not used | |
| | | |
| 16 | M | AF signal - | N9 Radio/hifi |
| | | |
| 17 | M | AF signal - | N9 Radio/hifi |
| | | |
| 18 | | Not used | |
| | | |
| 19 | | Not used | |
| | | |
| 20 | E | Speed signal | Connector, speedometer output signal X581 |
| | | |
| 21 | M | Negative activation, rear right medium-range speaker/tweeter | Right rear speaker |
| | | |
| 22 | M | RH front woofer ground control | Right front speaker |
| | | |
| 23 | A | RH front woofer voltage control | Right front speaker |
| | | |
| 24 | M | RH rear woofer ground control | Right rear speaker |
| | | |
| 25 | A | RH rear woofer voltage control | Right rear speaker |
| | | |
| 26 | M | Ground for electronic components | Stereo/hifi ground |
| | | |
| 27 | | Not used | |
| | | |
| 28 | | Not used | |
| | | |
| 29 | M | AF signal - | N9 Radio/hifi |
| | | |
| 30 | M | AF signal - | N9 Radio/hifi |
| | | |
| 31 | A | Positive activation, rear left medium-range speaker/tweeter | Left rear speaker |
| | | |
| 32 | M | Negative activation, rear left medium-range speaker/tweeter | Left rear speaker |
| | | |
| 33 | A | LH front tweeter voltage control | Left front speaker |
| | | |
| 34 | M | LH front tweeter ground control | Left front speaker |
| | | |
| 35 | | Not used | |
| | | |
| 36 | | Not used | |
| | | |
| 37 | A | AF signal + | N9 Radio/hifi |
| | | |
| 38 | A | AF signal + | N9 Radio/hifi |
| | | |
| 39 | M | Left front mid-range speaker ground control | Left front midrange speaker |
| | | |
| 40 | A | Left front mid-range speaker voltage control | Left front midrange speaker |
| | | |
| 41 | M | RH front medium-range speaker ground control | Right front midrange speaker |
| | | |
| 42 | A | RH front medium-range speaker voltage control | Right front midrange speaker |
| | | |