I have an avic n1 that recently went in for the cable upgrade. The tech called back saying he needs 200 dollars to fix a problem that is causing only the rca outputs to pop and hiss. Figuring that I don't use the rca but the wires that are on the power harness I'll be fine. 1 month later they go out too(no sound from the speakers only the sub). Nothing is wrong with the speakers. The wiring isn't arching or grounding out anywhere. The only thing I found was a ribbon cable in the HU has a wire fried. I can't find the part number to order it and was wondering if that is the problem if anyone else had the same problem. The ribbon goes from connector CN691 to CN2801. I think the wire that is burnt is GNDA. I'll take a picture of it when I can find my camera 
and thnx a bunch
