All of my speakers work great. But I had a cheap dvd player that I installed and hooked up with the auido/video rca's in the back of the unit. when i had it in stalled I only got sound out of the left speakers. I always thought it was because it was a cheap ass dvd player. However I just removed the dvd player and hooked up my ipod in the rca's and now I get sound only out of the left speakers still. I am not sure how to fix this. Any advice would be great. when the radio is on or a cd in all the speakers work