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Amazon.com: InstallGear Ground Loop Noise Isolator, Amplifier Noise Filter for Car Audio & Home Stereo, Feedback Loop Isolator, Car Stereo Noise Suppressor Reducer Alternator, Ground Loop Isolator : Electronics
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CAR STEREO, CB RADIO, SCANNER ALTERNATOR WHINE STOP IT AT ITS SOURCE................................ - YouTube
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Amazon.com: 1 - 15-Amp Noise Filter, Heavy-duty suppression of alternator & ignition noise, Land mobile class in-line filter, BR-FILTER
![Alternator noise filter? This is in my dad's boat but he says that's been unplugged ever since he got it, I'd just like to know what it is : r/MechanicAdvice Alternator noise filter? This is in my dad's boat but he says that's been unplugged ever since he got it, I'd just like to know what it is : r/MechanicAdvice](https://i.redd.it/0sz6oklkl1861.jpg)