08-12-2013, 11:22 AM
so i have this buzz /alternator whine i grounded the rca out puts on back of the headunit and to my surprise it got a tad better if that its so annoying is there any other fixes out there besides buying a new headunit
08-13-2013, 01:13 PM
Without knowing more information, here's what you can do.
Run a new ground wire for the head unit to bare metal that connects to the body of the vehicle.
Clean the ground connections for the battery. There should be a ground wire going to the body and a ground wire going to the engine.
Make sure your amplifier grounds go to clean, bare metal.
Get the idea? Alternator whine is often caused by a poor ground, possibly in multiple places.