Sound System Connectors, Bang & Olufsen MMI

Sound System Connectors, Bang & Olufsen MMI

Digital sound system control module (J525)





A MOST bus
B 18-pin connector (T18b)
C 32-pin connector (T32h)

• Unlisted connector terminals are not used.

A - MOST Bus





1. IN

2. OUT


B - 18-Pin Connector (T18b)





1 Microphone input 1 (+) from Microphone Unit in front roof module (R164) ( Inside Microphone (R74) )
2 Microphone input 1 (ground shielding) from Microphone Unit in front roof module (R164) ( Inside Microphone (R74) )
3 Microphone input 2 (+) from Microphone Unit in front roof module (R164) ( Voice Control Microphone (R206) ) through 10.31.2008
4 LF (+) cell phone preparation preliminary setup/Japan navigation through 10.31.2008
6 Right LF-In from external audio source connection (R199) through 10.31.2008
7 Left LF-In from external audio source connection (R199) through 10.31.2008
10 Microphone input 1 (-) from Microphone Unit in front roof module (R164) ( Inside Microphone (R74) )
11 Microphone input 2 (screen ground) from Microphone Unit in front roof module (R164) ( Voice Control Microphone (R206) ) through 10.31.2008
12 Microphone input 2 (-) from Microphone Unit in front roof module (R164) ( Voice Control Microphone (R206) ) through 10.31.2008
13 LF (-) cell phone preparation preliminary setup/Japan navigation through 10.31.2008
15 Right LF-In ground from external audio source connection (R199) through 10.31.2008
16 Left LF-In ground from external audio source connection (R199) through 10.31.2008
17 Ring-break diagnostic cable

C - 32-Pin Multi-Pin Connector (T32h)





1 Terminal 30
2 Terminal 31
3 Speaker, left rear (+)
4 Speaker, right rear (+)
5 Center Mid/High Range Speaker (R158) (+)
6 Speaker, left front (+)
7 Speaker, right front (+)
8 Left Rear Midrange Speaker (R105) (+)
9 Right Rear Midrange Speaker (R106) (+)
10 Right Front Bass Speaker (R23) (+)
15 Speaker, left rear (-)
16 Speaker, right rear (-)
17 Center Mid/High Range Speaker (R158) (-)
18 Speaker, left front (-)
19 Speaker, right front (-)
20 Left Rear Midrange Speaker (R105) (-)
21 Right Rear Midrange Speaker (R106) (-)
22 Right Front Bass Speaker (R23) (-)
23 Left Front Bass Speaker (R21) (+)
25 Subwoofer in rear shelf (R157) (+)
28 Left Front Bass Speaker (R21) (-)
30 Subwoofer in rear shelf (R157) (-)