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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DC whine that changes with engine rev. comes from your alternator on the engine through the power line. one of these in the line to cigarette lighter plug should cure that unless you here it without the phone hooked up In-line noise suppression filter or one of these ground loop isolators may be needed. 3.5 Noise Filter the ac noise on the tv is likely coming from some thing hooked up to it ( sat. receiver,dvd player etc.) unplug them one at a time and see when it quits. if it does it when only a antenna and receiving over the air tv channel then some thing is wrong with the tv probably bad capacitors inside.
