| Number | X-pin, colour | Description |
|---|---|---|
| X3564 | 3-pin, Blue | Plug connector Left microphone |
| Pin | Type | Description / Signal type | Connection / Measuring notes |
|---|---|---|---|
| 1 | E | Activation Left microphone | Microphone amplifier, left |
| 2 | Not used | ||
| 3 | E | Shield Left microphone | Microphone amplifier, left |