Ohh, baby! Noise in the electrical system!
Shawndude will hang me in the public square for this, but I daresay that installing a Radio Shack inline 12v noise filter before the amp may just solve your problem!

 

Inline 12V noise filter....hmmm....You think that it would make a difference? Does the AMP not come on when the car isn't running?

-Cory

 

The amp comes on but the car isn't running so it there isn't noise in the electrical system.

 

Yea that is the absolute tell-tale sign of alternator whine. Before you do anything like install a noise filter pull the radio and check the ground wire. Make sure it is grounded to the chassis really well. Then if that doesn't work go with the noise filter as thermactor said. Alternator whine is super annoying and even more annoying to solve.

 

Thanks for the encouragement. I might just take it upto my friend's shop, but I'd really like to solve it myself.

Thanks again.
-Cory

 

well this is an easy fix don't ahve to buy noise thing just move you power wire away from you rca's you got junk rca's replace em make sure they not never at power ralted wire or the rca's will pick up the sound and crap

 

Cory, I had this problem with my old car. Check the ground. Make sure that it's grounded in a good spot, and that the ground wire is nice and beefy.

Also, make sure that the stereo wires running to the amp off of the head unit, are run on the other side of the tranny tunnel in relation to the power wire coming off of the battery. If you run the two next to each other the power line can bleed noise over onto the stereo lines.

 

Find a better ground.

 

Also, there is a little device on the back of the alternator called a suppressor.. It costs, like, a buck.. there may also be another one hidden around the engine bay too.. ask a auto sparky to point them out to you and replace them..

The Supressor is anout the diamiter of a 'AA' or 'AAA' battery and about half as long as a 'AA'. it has a short black wire coming out of it too..

replacing the two fixed the whine in my '77 Celica..

 

Thanks everybody. Looks like I'm gonna have to pull the passenger seat and try and find the ground wire. It's really annoying. At first, I thought it was my BOV leaking cause the sound was going up with throttle relation...but...I hope I can get this fixed. It's really annoying listening to it.