Alternator whine, is it the rcas?


Bronze Member
Username: Technique24

Post Number: 16
Registered: Jul-06
Ok so I had some really bad alternator whine that cleared right up when I connected some extra wire from the rca connector to the back of my headunit. I only did it on one rca, so that was the only speaker that cleared, the rest still had whine. Does this mean the rcas are bad? I really don't wanna connect wires to all my rcas. What could be the prob?

Gold Member
Username: Theelfkeeper

Stockbridge, GA USA

Post Number: 2538
Registered: Feb-05
can i ask what kind of HU your using?? the older pioneers had ground issues and that was a common fix.

Bronze Member
Username: Clouduz

Post Number: 50
Registered: Jun-06
sry to hijack this thread, but i have a 860mp and recently had the alt whine, although i just brought a ground loop isolator and got rid of the noise. What was the common fix? I don't think mine was a ground problem tho, since i hear a buzzing whenever my car is in the "on" position.

@ Technique - I suggest if the rca's shielding is light, to get some more rca's with thicker shielding. If the noise persist try a gli. It's more of a band-aid but you won't hear the noise anymore.
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