Standard/Bose Sound System Overviews

BOSE Sound System Connectors, Digital Sound System Control Module (J525)

Digital Sound System Control Module (J525)





1. MOST Bus (T2ca)

2. 18-pin connector (T18)

3. 38-pin Connector (T38)


• Unlisted connector terminals are not used.

1 - MOST Bus (T2ca)





1. Input

2. Output


2 - 18-pin connector (T18)





6 Left Rear Microphone (R144) (+)
7 Left Rear Microphone (R144) (-)
8 Right rear microphone (R145) (+)
9 Right rear microphone (R145) (-)
10 Engine Control Module (J623) (+) RPM Signal
11 Engine Control Module (J623) (-) RPM Signal
13 Right Center Microphone (R143) (+)
14 Right Center Microphone (R143) (-)
16 Left Center Microphone (R142) (+)
17 Left Center Microphone (R142) (-)

3- 38-pin Connector (T38)





1 Terminal 30
2 Terminal 31
3 Speaker (+) rear right
4 Left Front Bass Speaker (R21) (+)
5 Subwoofer (R211) (-)
7 Left Front Midrange Speaker (R103) (-)
8 Right Front Midrange Speaker (R104) (+)
9 Right Front Treble Speaker (R22) (-)
10 Left Front Treble Speaker (R20) (+)
11 Right Front Bass Speaker (R23) (-)
12 Right Front Bass Speaker (R23) (+)
13 Speaker (+) rear left
14 Speaker (-) rear left
15 Speaker (-) rear right
16 Left Front Bass Speaker (R21) (-)
17 Subwoofer (R211) (+)
19 Left Front Midrange Speaker (R103) (+)
20 Right Front Midrange Speaker (R104) (-)
21 Right Front Treble Speaker (R22) (+)
22 Left Front Treble Speaker (R20) (-)
25 Ring-break diagnostic cable
28 Microphone unit in front roof module (R164) ( Interior microphone (R74) ) ground shielding
29 Microphone unit in front roof module (R164) ( Interior microphone (R74) ) (-)
30 Microphone unit in front roof module (R164) ( Interior microphone (R74) ) (+)
31 Center speaker (R208) (+)
32 Center speaker (R208) (-)
33 Left effects speaker (R209) (-)
34 Left effects speaker (R209) (+)
37 Right effects speaker (R210) (+)
38 Right effects speaker (R210) (-)