I had a Pioneer head unit and Polk Audio speakers installed ('05 Base xfire, no rear speakers, just in front doors) about a year and a half ago. Everything has worked fine up until recently. Out of no where I lost sound in my speakers. I have to crank the volume all the way up to hear anything and what I can hear is faint, distant and has static. I was told I probably blew a channel on the head unit so I installed another and still have the same issues. I hooked a home speaker to the Pioneer head unit and it worked perfectly. So with all of that being said I know its not the head unit. So the question is...what is it? Speakers? Hard to believe that both speakers went bad at the same time. So next would be factory amp, except I don't think the Base model had a factory amp. I could be wrong but so far everyone says its under the passenger seat. So I took out the passenger seat and pulled the carpet and found nothing. Not sure what to do from here. Something is messed up between head unit and speakers. HELP!!!