не знаю как в совсем новых вольцах, но в шкоде так:
коса идет от головы до штатного усилителя.
управляется он по КАНу
вот его распиновка
Multi-pin connector A, 24-pin
1 – Rear left treble loudspeaker, positive
2 – Rear right bass loudspeaker, negative
3 – Rear right bass loudspeaker, positive
4 – Rear left bass loudspeaker, positive
5 – Rear right treble loudspeaker, negative
6 – Rear right treble loudspeaker, positive
7 – Rear left treble loudspeaker, negative
8 – Front left bass loudspeaker, negative
9 – Front left bass loudspeaker, positive
10 – Rear left bass loudspeaker, negative
11 – Front right mid-range loudspeaker, negative
12 – Front right mid-range loudspeaker, positive
13 – Not assigned
14 – Audio signal input, rear left, negative
15 – Audio signal input, rear left, positive
16 – Not assigned
17 – Audio signal input, rear right, negative
18 – Audio signal input, rear right, positive
19 – Control in (optional)
20 – Audio signal input, front left, negative
21 – Audio signal input, front left, positive
22 – Not assigned
23 – Audio signal input, front right, negative
24 – Audio signal input, front right, positive
Multi-pin connector B, 23-pin
1 – CAN low
2 – Front left mid-range loudspeaker, negative
3 – Front left mid-range loudspeaker, positive
4 – CAN high
5 – Not assigned
6 – Front left treble loudspeaker, negative
7 – Not assigned
8 – Not assigned
9 – Front left treble loudspeaker, positive
10 – Not assigned
11 – Front right bass loudspeaker, positive
12 – Front right bass loudspeaker, negative
13 – Not assigned
14 – Not assigned
15 – Front right treble loudspeaker, positive
16 – Voltage supply, negative
17 – Not assigned
18 – Front right treble loudspeaker, negative
19 – Voltage supply, negative
20 – Voltage supply, positive
21 – Voltage supply, positive
22 – Voltage supply, negative
23 – Voltage supply, positive





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