Alternator Whine Options

[GTS13]

Hey guys,
I just finished installing my new 6 channel amp but now have alternator noise. I've already redone my ground on the amp moving it to a different location even and that didn't fix it. I also bought a couple Ground Loop Isolators and those didn't fix it either so I returned them. Any other ideas on what to do? Only other thing I can think of would be to replace my alt with a bigger one?

The amp is a JBL GTO 755.6 II.

Thanks!

[GTS13]

Ok well I didn't just use any old ordinary RCA cables. I paid decent money for some Streetwires that are shielded rather well. The power runs on the driver's side of the car and the RCA cables run down the middle of the car through the center console and the only point that they cross paths is to enter the amp.

Here's a link to the RCA cable that I'm using. http://www.crutchfield.com/S-SzBUbULqCqF/c...amp;I=211ZN7435

This post has been edited by GTS13: Aug 5, 2007 - 3:23 PM

[BloodyStupidDave...]

Ok well I didn't just use any old ordinary RCA cables. I paid decent money for some Streetwires that are shielded rather well. The power runs on the driver's side of the car and the RCA cables run down the middle of the car through the center console and the only point that they cross paths is to enter the amp.

Okay. Any you say that the ground loop eliminator didn't work for you either, so breaking the RCA earth connection on one end (which is effectively what the ground loop eliminator does, but with clever electronics) isn't likely to help. At this point, your best bet would seem to be to use some heavy gauge wire and try grounding things together in a trial-and-improvement way. Basically paragraphs 5, 6 and 7 from my first post.