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Pin assignment for BOSE sound system (MMI) > < Sound systems - layout

A1

Microphone unit in front roof moduleR164 - overview
Microphone unit in front roof module -R164- - overview
The microphone unit in front roof module -R164- is fitted in the front interior light -W1-. There are up to two microphones installed (depending on equipment version).
One of the microphones (internal microphone -R74-) is connected directly to the digital sound package control unit -J525-. The other microphone (telephone microphone -R38-) is connected to the control unit 1 for information electronics -J794-.
The microphone unit in front roof module -R164- in the front interior light -W1- can only be renewed as a complete unit. It is not possible to renew individual microphones (internal microphone -R74- or telephone microphone -R38-).
   
Microphone unit in front roof module -R164-
1 - Front interior light -W1-
2 - Multi-pin connector, 4-pin (T4bg)
3 - Internal microphone -R74- (black) to digital sound package control unit -J525-
4 - Telephone microphone -R38- (grey) to control unit 1 for information electronics -J794- (MMI)
  A91-11604
Pin assignment
1 - Multi-pin connector, 4-pin (T4bg)
1 - Microphone 1 (telephone microphone -R38-) to control unit 1 for information electronics -J794-
2 - Microphone 1 (telephone microphone -R38-) to control unit 1 for information electronics -J794-
3 - Microphone 2 (internal microphone -R74-) to digital sound package control unit -J525-
4 - Microphone 2 (internal microphone -R74-) to digital sound package control unit -J525-
2 - Microphone 1 (telephone microphone -R38-)
3 - Microphone 2 (internal microphone -R74-)
Removing and installing microphone unit in front roof module -R164- → Chapter.
  A91-10674

Pin assignment for BOSE sound system (MMI) > < Sound systems - layout