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Paid alpinemss for the remote coding. He was worried because he says when you install a used cic you should get some sound, I had none. After coding, sound works again. He said the firmware was old.
This was a tough one to diagnose because the previous owner messed with the car. I used ista to play test tones through the amp module and got the speakers to work when diagnosing. Bypassed the combox, still no sound. Traced the entire most loop, it was fine. After replacing the cic with a used unit and no coding I was getting no sound and 4 codes for speaker output leads open circuit.
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