Digital Sound System Control Module -J525-, Connector Views

1. 38-Pin Connector -T38-/18-Pin Connector -T18i-

Courtesy of AUDI OF AMERICA, LLC

-T18i- (B)	Designation
1
2
3
4
5
6	Noise Reduction Microphone 3 -R287-
7	Noise Reduction Microphone 3 -R287-
8	Noise Reduction Microphone 4 -R288-
9	Noise Reduction Microphone 4 -R288-
10	Engine Control Module (ECM) -J623-/Subframe Mount Control Module -J931-
11	Terminal 31, to 397 Ground Connection 32 (in main wiring harness)
12
13	Noise Reduction Microphone 2 -R286-
14	Noise Reduction Microphone 2 -R286-
15
16	Noise Reduction Microphone 1 -R285-
17	Noise Reduction Microphone 1 -R285-
18

-T38- (A)	Designation
1	Terminal 30, from Fuse Carrier 4 -ST4- in fuse panel-F -SF-
2	Terminal 31, to 50 Ground Connection (in left luggage compartment)(1) 729 Ground connection on left rear wheel housing(2)
3	Right Rear Bass Speaker -R17-/Right Rear Treble Speaker -R16-
4	Left Front Bass Speaker -R21-
5	Subwoofer -R211-
6
7	Left Front Midrange Speaker -R103-
8	Right Front Midrange Speaker -R104-
9	Right Front Speaker -R3-
10	Left Front Speaker -R2-
11	Right Front Bass Speaker -R23-
12	Right Front Bass Speaker -R23-
13	Left Rear Bass Speaker -R15-/Left Rear Treble Speaker -R14-
14	Left Rear Bass Speaker -R15-/Left Rear Treble Speaker -R14-
15	Right Rear Bass Speaker -R17-/Right Rear Treble Speaker -R16-
16	Left Front Bass Speaker -R21-
17	Subwoofer -R211-
18
19	Left Front Midrange Speaker -R103-
20	Right Front Midrange Speaker -R104-
21	Right Front Speaker -R3-
22	Left Front Speaker -R2-
23
24
25	Ringbreak Diagnosis Wire to (b444) OBD Connection 1 (in main wiring harness)
26
27
28	Ground-shielding for Interior microphone -R74- in Microphone Unit (in front roof module) -R164-
29	Inside Microphone -R74- in Microphone Unit (in front roof module) -R164-
30	Inside Microphone -R74- in Microphone Unit (in front roof module) -R164-
31	Center speaker -R208-
32	Center speaker -R208-
33
34
35
36
37
38
(1) Only sedan (2) Only Avant