Sound System Connector Assignments Standard, MMI, Through 10 / 27 / 2008

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Digital Sound System Control Module J525

Fig 1: Digital Sound System Control Module -J525-

Courtesy of AUDI OF AMERICA, LLC

A - MOST Bus

B - 32-Pin Connector (T32h)

NOTE:

Unlisted Connector Terminals Are Not Assigned.

A - MOST Bus

Fig 2: 2 - MOST Bus

Courtesy of AUDI OF AMERICA, LLC

Input
Output

B - 32-Pin Connector (T32h)

Fig 3: B - Black 32-Pin Connector (T32h)

Courtesy of AUDI OF AMERICA, LLC

1 - Terminal 30

2 - Terminal 31

3 - Subwoofer in Rear Shelf -R157- (+)

4 - Left Front Speaker (+)

5 - Right Front Speaker (-)

6 - Left Rear Speaker (+)

7 - Right Rear Speaker (+)

8 - Speaker in Center -R148- (+)

15 - Subwoofer in Rear Shelf -R157- (-)

16 - Left Front Speaker (+)

17 - Right Front Speaker (-)

18 - Left Rear Speaker (-)

19 - Right Rear Speaker (-)

20 - Speaker in Center -R148- (-)

23 - Microphone 1 (+) from Microphone Unit in Front Roof Module -R164- (Speech Recognition System Microphone -R206-)

24 - Left LF-In from the External Audio Source Connection -R199-

25 - LF (+) from the cell phone preparation / Japan Nav

26 - Right LF-In from the External Audio Source Connection -R199-

27 - Ring-break Diagnostic Cable

28 - Microphone 1 (-) from Microphone Unit in Front Roof Module -R164- (Speech Recognition System Microphone -R206-)

29 - Left LF-In ground from the External Audio Source Connection -R199-

30 - LF (-) from the cell phone preparation / Japan Nav

31 - Right LF-In ground from the External Audio Source Connection -R199-