power line noise
Running into 2 different powerline noise issues. 1st is the stereo in the cab, plugged phone into cigarette lighter on the dash, then aux input into stereo, getting DC whine that changes with engine r...
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one of the links in my previous post is a ground loop isolator with transformers in it to break the ground loop. here is the manual for it 3.5 Noise Filter he can move it from vehicle to vehicle also.
