Standard audio system connectors (CAN) (Audi A4 B8)

Digital Audio System Control Unit "J525"

A. Multi-pin plug connection, 32-pin (T32h)

1. Terminal 30.

2. Terminal 31.

3. Subwoofer in the rear. shelf "R157" (+).

4. (+) front left speaker.

5. (+) right speaker terminal.

6. (+) rear left speaker.

7. (+) rear right speaker.

8. Central midrange-high-frequency speaker "R158" (+).

13. CAN-Infotainment High.

14. CAN-Infotainment Low.

15. Subwoofer in the rear. shelf "R157" (-).

16. (-) left speaker per.

17. (-) right speaker per.

18. (-) rear left speaker.

19. (-) rear right speaker.

20. Central midrange-high-frequency speaker "R158" (-).

23. Signal (+) rear right from radio "R".

24. Signal (+) rear left from radio "R".

25. Signal (+) front right from radio "R".

26. Signal (+) front left from radio "R".

28. Signal (-) rear right from radio "R".

29. Signal (-) rear left from radio "R".

30. Signal (-) front right from radio "R".

31. Signal (-) front left from radio "R".