| Number | X-pin, colour | Description |
|---|---|---|
| X537 | 2 -pin, Black | Plug connector Left front mid-range speaker |
| Pin | Type | Description / Signal type | Connection / Measuring notes |
|---|---|---|---|
| 1 | A | Negative activation, front left mid-range speaker | Left front speaker |
| 2 | E | Positive activation, front left mid-range speaker | Left front speaker |