Re: Car mods; restoration; rehab; audio thread
I had a shop install an amp and a subwoofer for my first car. (Traditional install. Head unit where it belongs. RCAs to the amp in the trunk which powered all the speakers and the sub.)
It always had a terrible whine in it. I think it was interference between the power line and the signal lines. I brought it back 3 times. Each time, they could reduce the interference. But they could never get rid of it. I ended up not replacing the stereo after it was stolen and have kept my cars stock ever since.
How is that kind of interference avoidable?
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