Bluetooth Connector – use by Volkswagen, Skoda, Seat and Audi.
Main Connector - 54-pin (18×3) – blue- 4E0 972 144 (4E0972144)
- Pins – N/A
- Repair Wire 0.5mm – 000 979 010 (000979010)
- Repair Wire 1.0mm – N/A
- Repair Wire 2.5mm – N/A
Male
- Pins – N/A
- Repair Wire 0.5mm – N/A
- Repair Wire 1.0mm – N/A
- Repair Wire 2.5mm – N/A
Microphone - 2-pin (2×1) – microphone
- Pins – N/A
- Repair Wire 0.5mm – 000 979 018 (000979018)
- Repair Wire 1.0mm – N/A
- Repair Wire 2.5mm – N/A
Male – 8D0 972 643 (8D0972643)
- Pins – N/A
- Repair Wire 0.5mm – 000 979 017 (000979017)
- Repair Wire 1.0mm – N/A
- Repair Wire 2.5mm – N/A

I think the mating connector for Mic should be 1J0 973 119.
Hello
Anyone have the wiring of the 54 pins ?
Which pins is used for the function ?
Best regard