Cellular Telephone Preparation Connectors, From My 2009
A - Bluetooth antenna connection (yellow)
B - Black 54-pin multi-pin harness connector (T54)
NOTE:
Unlisted connector terminals are not assigned.
1 - Terminal 30
2 - Terminal 31
8 - LF (+) out to radio/navigation system with CD drive control module
9 - LF (-) out to radio/navigation system with CD drive control module
10 - Terminal 31 (screen ground) (not used)
11 - Microphone input (+) from microphone unit (in front roof module)/navigation system with CD drive control module
12 - Microphone input (-) from microphone unit (in front roof module)/navigation system with CD drive control module
16 - LF mute to navigation system with CD drive control module
17 - CAN-Bus High (Infotainment)
18 - CAN-Bus Low (Infotainment)