| Number | X-pin, colour | Description | 
|---|---|---|
| X18187 | 2-pin, Black | Plug connector Left medium-range/high-range speaker | 
| Pin | Type | Description / Signal type | Connection / Measuring notes | 
|---|---|---|---|
| 1 | A | Negative activation, rear left medium-range speaker/tweeter | Radio Amplifier | 
| 2 | E | Positive activation, rear left medium-range speaker/tweeter | Radio Amplifier |