OK, the intention of my previous post was to offer a general idea of what to look for but I have since found the correct image of the CAN based module, so without further ado or added MOST:
For general identification of the 54-Pin connector and Fakra Bluetooth Antenna
Telephone transmitter and receiver unit -R36-
A - Connection for aerial for Bluetooth -R152-
B - Multi-pin connector, 54-pin (T54a)
View attachment 34662
B - Multi-pin connector, 54-pin (T54a)
1 - Terminal 30
2 - Terminal 31
3 - Switch-on signal to aerial amplifier for mobile telephone -R86-
8 - NF+ (low frequency) to radio -R-
9 - NF (â) (low frequency) to radio -R-
10 - Terminal 31 screen earth (not used)
11 - Microphone input (+) from microphone unit in front roof module -R164-
12 - Microphone input (â) from microphone unit in front roof module -R164-
16 - NF mute (low frequency) (not used)
17 - CAN bus High (Infotainment)
18 - CAN Bus Low (Infotainment)
37 - Terminal 30 to telephone bracket -R126-
39 - Terminal 31 to telephone bracket -R126-
41 - Terminal 30 to telephone bracket -R126-
42 - Microphone output (+) to telephone bracket -R126-
43 - Microphone output (â) to telephone bracket -R126-
44 - Terminal 31 (screen earth)
45 - NF (+) (low frequency) from telephone bracket -R126-
46 - NF (â) (low frequency) from telephone bracket -R126-
47 - DIAG signal from telephone bracket -R126-
49 - Ser-Tx (+) to telephone bracket -R126-
50 - Ser-Tx (â) to telephone bracket -R126-
51 - Ser-Rx (+) from telephone bracket -R126-
52 - Ser-Rx (â) from telephone bracket -R126-