BOSE Sound System

Fig 1: Digital Sound System Control Module J525 - Bose, Through Approx. 02.05, Multi-Pin Connector Assignments

Courtesy of AUDI OF AMERICA, LLC

A -

Black 32-pin connector

B -

MOST Bus

C -

Black 18-pin connector

NOTE:

Unlisted connector terminals are not assigned.

Fig 2: B - Black 32-Pin Connector (T32h)

Courtesy of AUDI OF AMERICA, LLC

1 -

Terminal 30

2 -

Terminal 31

5 -

Left front bass speaker -R21- (+)

8 -

Positive switched to amplifier -R12-

10 -

Subwoofer (+) to amplifier

13 -

Speaker in rear shelf -R150- (-)

14 -

Speaker in rear shelf (+)

17 -

Left front bass speaker (-)

22 -

Subwoofer (-) to amplifier

23 -

Center mid-treble speaker -R158-

24 -

Loudspeaker, right front (+)

25 -

Loudspeaker, left rear (+)

26 -

Loudspeaker, right rear (+)

27 -

Loudspeaker, left front (+)

28 -

Center mid-treble speaker

29 -

Loudspeaker, right front (-)

30 -

Loudspeaker, left rear (-)

31 -

Loudspeaker, right rear (-)

32 -

Loudspeaker, left front (-)

Fig 3: Identifying MOST BUS Input/Output Connections

Courtesy of AUDI OF AMERICA, LLC

Input
Output

Fig 4: 18-Pin Connector

Courtesy of AUDI OF AMERICA, LLC

1 -

Microphone input 1 (+) from microphone unit in front roof module -R164- (interior microphone -R74-)

2 -

Microphone 2 (+) from microphone unit in front roof module (speech recognition system microphone -R206-)

5 -

Ring-break diagnostic wire

10 -

Microphone input 1 (-) from microphone unit in front roof module (interior microphone)

11 -

Microphone 2 (-) from microphone unit in front roof module (speech recognition system microphone)