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Alternator whine
Posted: Wed May 08, 2013 7:48 am
by Tomzman
I've installed an aftermarket amp in my 2001 bonneville and came up with a pretty bad alternator whine. I've tried separating the RCAs and power wires, different grounding points, and ground loop isolators. I'm frankly running out of ideas. Has anyone installed an aftermarket amp and correctly diagnosed the whine issue? Any other ideas to try? Thanks for all the help.
Re: Alternator whine
Posted: Wed May 08, 2013 9:23 am
by J Wikoff
When I had whine, I was using line output converters. My amp has speaker level inputs, so I tried those and the whine went away.
Re: Alternator whine
Posted: Wed May 08, 2013 9:43 am
by Tomzman
Yea that's where I probably should include the detail where I am using an aftermarket kenwood receiver and am running RCAs off the back of that to my amp... I know if I unplug the RCAs off the back of the amp that the whine does disappear. I am using the stock harness for the ground on my HU, so I may try running a ground cable from my HU to where I have my amp grounded...
Re: Alternator whine
Posted: Wed May 08, 2013 12:41 pm
by nos4blood70
I am using a LOC and I have no alternator whine.
Re: Alternator whine
Posted: Wed May 08, 2013 1:11 pm
by Tomzman
LOC?
Re: Alternator whine
Posted: Wed May 08, 2013 6:52 pm
by Tomzman
The antenna... It was grounding out the HU, creating the ground loop.
Re: Alternator whine
Posted: Fri May 10, 2013 11:37 pm
by nos4blood70
Line Out converter! And I'm glad you found your solution.
