Audio Problems

I have three amps hooked up to a capacitor and for some reason right now, whenever i turn my stereo on there is static in the speakers and when you close the door or flash the headlights you hear a sound in the speaker. When the stereo gets turned off there is a noise as well, any ideas what could cause this problem.

Sounds like a bad ground to me. I would definately start looking over all your grounds and make sure they are solid.

I checked all of the grounds again and again, they seem to be all good, i have them hooked up to some bolts on the frame. I have also gone through the connections to each amp to make sure they are good and they are?:confused:

Check the ground resistance, with a DVM, should be zero or as close to zero it can be.

It was the actual deck, i bought a new one hooked it into the same wiring harness and it does not do it anymore. Thanks for the help anyways.