augy

A staticy sort of fuzz coming from the speakers? It comes from the sub and the regular speakers (sorry, not a big sound guy =D). It worked about a week ago, then I totally gutted the rear of my crx to install jdm rear seats, and when I hooked up my amp, There's music, but there is no power (that is, "UMPH") at all and the speakers crackle/hiss/fuzz whenever the music isn't really soft. The amp ground is solid. Is there an electrical reason for this?
thanks for the help,
augy.