I just installed 4 new pioneer speakers (sounds good). That is not the problem, just thought i would say so. Anyways, for as long as i have had the car it has made aweful noises when the volume is loud. Noise as in the music quits playing and it just scratches and farts. I don't have any experience with stereo stuff, so i figured i would ask you all. The head unit is a Radio Shack (don't have the cash to upgrade). Also, there is a squeaking type noise that comes from the head unit. Don't want to spend $50 for some guy to plug a wire back in.

thanks
luke

all wiring to speakers is correct as i just replaced them, but i do not know how to get the reciever out to check it

 

common guys, i know you know