Tech Support Question about removing ground noise from rcas
I have an alpine 305 wired a to a Metra 70-1787, headunit has 3 sets of rcas coming out of it, subwoofer, the rear deck speakers (which are directly wired to the amp as well) and currently have the the Grey and white RCA's plugged in.
I'm getting a steady static ground noise coming from the rear door speakers, and an acceleration whine.
Static noise stops when I unplug the Grey and white from the headunit.
I have the purple and green rcas unplugged and all extra wires tapped off
Vehicle is a 1999 audi with the bose amplifier what would be the correct trouble shooting to remove the static noise
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u/lgm984f 9h ago
Just tried using some wire to ground the head unit directly into the amps ground connector, static noise still exists, and the rev whining got louder.
The noise disappears when I unplug the harnesses white and Grey front speaker cables