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Discussion Starter · #1 ·
I am working on installing an Alpine stereo (CDA 9856) into my BMW 525i, and I didn't know if there would be a problem with the wiring, I have the OEM wiring harness already, I ordered it from crutchfield, but the problem I see is that the BMW speaker system is component and my Alpine stereo wiring harness has 4 pair of wires (LF, RF, LR, RR). Is this going to cause a problem?

I have the charts saying what wire colors go to which speakers in my BMW, but I don't know what i'm supposed to do.

Please help. :-/
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