Digital Sound System Control Module -J525- CONNECTOR ASSIGNMENT, BOSE®

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Fig 1: Identifying Digital Sound System Control Module -J525-

Courtesy of AUDI OF AMERICA, LLC

MOST bus
18-Pin Connector -T18-
38-Pin Connector -T38-

NOTE:

Unlisted connector terminals are not used.

Fig 2: 2 - MOST Bus

Courtesy of AUDI OF AMERICA, LLC

Fig 3: 2 - 18-pin connector (T18)

Courtesy of AUDI OF AMERICA, LLC

6 - Left Rear Microphone -R144- (+)

7 - Left Rear Microphone -R144- (-)

8 - Right Rear Microphone -R145- (+)

9 - Right Rear Microphone -R145- (-)

10 - Speed signal from Engine Control Module -J623- (+)

11 - Speed signal from Engine Control Module -J623- (-)

13 - Right Center Microphone -R143- (+)

14 - Right Center Microphone -R143- (-)

16 - Left Center Microphone -R142- (+)

17 - Left Center Microphone -R142- (-)

Fig 4: 2 - 38-Pin Connector - T38-

Courtesy of AUDI OF AMERICA, LLC

1 - Terminal 30

2 - Terminal 31

3 - Right rear speaker (+)

4 - Left Front Bass Speaker -R21- (+)

5 - Subwoofer -R211- (-)

7 - Left Front Midrange Speaker -R103- (-)

8 - Right Front Midrange Speaker -R104- (+)

9 - Right Front Treble Speaker -R22- (-)

10 - Left Front Treble Speaker -R20- (+)

11 - Right Front Bass Speaker -R23- (-)

12 - Right Front Bass Speaker -R23- (+)

13 - Left rear speaker (+)

14 - Left rear speaker (-)

15 - Right rear speaker (-)

16 - Left Front Bass Speaker -R21- (-)

17 - Subwoofer -R211- (+)

19 - Left Front Midrange Speaker -R103- (+)

20 - Right Front Midrange Speaker -R104- (-)

21 - Right Front Treble Speaker -R22- (+)

22 - Left Front Treble Speaker -R20- (-)

25 - Ring-break Diagnostic Cable

28 - Ground shielding from Microphone Unit In Front Roof Module -R164- (Interior Microphone -R74-)

29 - Microphone Unit in Front Roof Module -R164- (Interior Microphone -R74-) (-)

30 - Microphone Unit in Front Roof Module -R164- (Interior Microphone -R74-) (+)

31 - Center Speaker -R208- (+)

32 - Center Speaker -R208- (-)

33 - Left Effects Speaker -R209- (-)

34 - Left Effects Speaker -R209- (+)

37 - Right Effects Speaker -R210- (+)

38 - Right Effects Speaker -R210- (-)