Connector Assignments

Fig 1: Digital Sound System Control Module -J525-

Courtesy of AUDI OF AMERICA, LLC

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

Courtesy of AUDI OF AMERICA, LLC

Terminal 30
Terminal 31
Not Assigned
Left Rear Bass Speaker -R15- (+)
Left Rear Bass Speaker -R15- (-)
Center Speaker -R208- (-)
Left Front Bass Speaker -R21- (-)
Left Front Bass Speaker -R21- (+)
Right Front Bass Speaker -R23- (+)
Right Front Bass Speaker -R23- (-)
Left Front Midrange Speaker -R103- (-)
Left Front Midrange Speaker -R103- (+)
Right Front Midrange Speaker -R104- (-)
Right Front Midrange Speaker -R104- (+)
Not Assigned
Right Rear Bass Speaker -R17- (-)
Right Rear Bass Speaker -R17- (+)
Center Speaker -R208- (+)
Subwoofer -R211- (-)
Subwoofer -R211- (+)
Subwoofer -R211- (+)
Subwoofer -R211- (-)
Right Front Treble Speaker -R22- (-)
Left Front Treble Speaker -R20- (-)
Left Rear Treble Speaker -R14- (+)
Right Rear Treble Speaker -R16- (-)
Right Effects Speaker -R210- (-)
Left Effects Speaker -R209- (-)
Microphone input (-) from Microphone Unit In Front Roof Module -R164-, Interior Microphone -R74-
Not Assigned
Right Front Treble Speaker -R22- (+)
Left Front Treble Speaker -R20- (+)
Left Rear Treble Speaker -R14- (-)
Right Rear Treble Speaker -R16- (-)
Right Effects Speaker -R210- (+)
Left Effects Speaker -R209- (+)
Microphone input (+) from Microphone Unit In Front Roof Module -R164-, Interior Microphone -R74-
Ring break diagnostic line

Fig 3: 2 - MOST Bus

Courtesy of AUDI OF AMERICA, LLC