97 Accord EX Factory Audio

OK. My girlfriends 97 accord EX has a full factory system with Cassette receiver and factory 6 disk CD changer mouted in the trunk. There is no sound coming out of the speakers on the drivers side of the car. You turn the volume up all the way balanced to the driver side and all you hear is an occational pop and some noise. This comes and goes. Whats wrong with the amp?
Oh, my other question is, where is the freak'n amp located in the car. I've checked under seats, the trunk. Everything but pulling the Dash off. Anyone know? Pretty Please? :confused:

well either the speakers are blown, the wire has come loose on the wiring harness plugged into the radio, or the wires have come loose or been clipped somewhere in the door panels. there is no factory amp that i know of, everything is powered by the radio.