Bang and Olufsen, Digital Sound System Control Module, Multi-Pin Connector Assignments

Bang and Olufsen, Digital Sound System Control Module, Multi-Pin Connector Assignments

Digital Sound System Control Module (J525)





A Black 18-pin multi-pin harness connector (T18c)
B Black 32-pin connector (T32c)

• Unlisted connector terminals are not used.

A - Multi-Pin Connector, Black, 18-pin (T18c)





1. Microphone input 1 (-) from the Interior Microphone (R74)

2. Microphone input 1 (ground shielding) from the interior microphone

3. Microphone input 2, not used

4. Right rear signal (+) from the radio /Navigation System With CD Drive Control Module (J401)

5. Left rear signal (+) from the radio/navigation system with CD drive control module

6. Right front signal (+) from the radio/navigation system with CD drive control module

7. Left front signal (+) from the radio/navigation system with CD drive control module

8. Positive switched from radio/navigation system with CD drive control module

9. CAN-Bus High (Infotainment)

10. Microphone input 1 (+) from the interior microphone

11. Microphone input 2, not used

12. Microphone input 2, not used

13. Right rear signal (-) from the radio/navigation system with CD drive control module

14. Left rear signal (-) from the radio/navigation system with CD drive control module

15. Right front signal (-) from the radio/navigation system with CD drive control module

16. Left front signal (-) from the radio/navigation system with CD drive control module

17. Ring diagnostic ground (not used)

18. CAN-Bus Low (Infotainment)

B - Multi-Pin Connector, Black 32-pin (T32c)





1 Terminal 30
2 Terminal 31
3 Loudspeaker, left rear (+)
4 Loudspeaker, right rear (+)
5 Center Mid/High Range Speaker (R158) (+)
6 Left Front Midrange Speaker (R103) (+)
7 Right Front Midrange Speaker (R104) (+)
8 Left Front Treble Speaker (R20) (+)
9 Right Front Treble Speaker (R22) (+)
10 Right Front Bass Speaker (R23) (+)
15 Loudspeaker, left rear (-)
16 Loudspeaker, right rear (-)
17 Center Mid/High Range Speaker (-)
18 Left Front Midrange Speaker (-)
19 Right Front Midrange Speaker (-)
20 Left Front Treble Speaker (-)
21 Right Front Treble Speaker (-)
22 Right Front Bass Speaker (-)
23 Left Front Bass Speaker (R21) (+)
24 FIT (not used)
25 Center Loudspeaker (R148) (+)
26 RS 232 Rx (not used)
27 RS 232 GND (not used)
28 Left Front Bass Speaker (-)
29 FIT (not used)
30 Center Loudspeaker (-)
31 RS 232 Tx (not used)
32 +5 V (not used)