My right side speakers are going in and out whenever the car is moving. When the car is still, the stereo sounds great. What i don't understand is that I've moved the wires behind the head unit around with my hand while the misic is on and there's no problem. Once the car starts moving, the right side speakers go in and out. I'm stumped. Any suggestions?

If the problem only occurs while the car is in motion, my initial guess is that you have a loose connection somewhere. Are you using a factory or aftermarket system? Is it the front right, rear right, or both that's cutting in and out?

The first thing I'd do if I were you is to check the connections on any affected speakers, the connections leading from the back of the headunit, and if you have one, the connections leading both to and from whatever amp drives the affected speakers.

If all the connections seem secure, you can try swapping the left and right speakers. If the problem moves to the left side, it's a problem with the speaker. If it stays on the right side, you're looking at a problem either with your head unit, amp(if you have one), or wiring.

sounds like a loose signal(rca) cable
javi d
vroom n' boom

if its stock dont be cheap buy a head unit... you wont believe the difference :D

Not stock: Sony head unit w/6-disk changer, 375 x 4 Rockford amp