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Old 05-11-2022, 06:14 PM
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S677 HiFi System Professional DSP

A18 Amplifier
Plug connector overview
Number X-pin, colour Description
X10266 42-pin, Plug connector Amplifier

Pin assignments at plug connector X10266
Pin Type Description /Signal type Connection /Measuring notes
1 A Signal, speaker - Subwoofer, front left
2 A Signal, speaker + Subwoofer, front left
3 A Signal, speaker - Tweeter, rear left
4 A Signal, speaker + Tweeter, rear left
5 E Terminal 30 Fuse F81
6 -- Not used
7 -- Not used
8 -- Not used
9 E Signal, AF radio, front right + Radio
10 A Aerial switching signal Aerial diversity
11 A Signal, speaker + Tweeter, front right
12 A Signal, speaker - Tweeter, front right
13 A Signal, speaker + Mind-range speaker, rear right
14 -- Not used
15 -- Not used
16 -- Not used
17 E Signal, AF radio, front right - Radio
18 E/A K-bus signal K-bus connector
19 -- Not used
20 -- Not used
21 A Signal, speaker - Mind-range speaker, rear right
22 A Signal, speaker - Tweeter, rear right
23 A Signal, speaker + Tweeter, rear right
24 A Signal, speaker - Subwoofer, front right
25 A Signal, speaker + Subwoofer, front right
26 M Ground Ground point
27 -- Not used
28 E Mute Telephone
29 E Signal, telephone AF - Telephone
30 E Signal, AF radio, front left - Radio
31 A Signal, speaker + Mid-range speaker, rear left
32 A Signal, speaker - Mid-range speaker, rear left
33 A Signal, speaker + Tweeter, front left
34 A Signal, speaker - Tweeter, front left
35 -- Not used
36 -- Not used
37 E Signal, telephone AF + Telephone
38 E Signal, terminal 50 via vehicle immoblizer Radio
39 A Signal, speaker - Mid-range speaker, front left
40 A Signal, speaker + Mid-range speaker, front left
41 A Signal, speaker - Mid-range speaker, front right
42 A Signal, speaker + Mid-range speaker, front right
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2007 BMW X3 3.0Si -- MT6
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