Audio Systems: 2000 Jeep cherokee door speakers, jeep cherokee, blown speakers

Question
I have just purchased a 2000 Jeep Cherokee Limited with a Infinity amp and sound system (factory CD/tape).None of my door speakers work and i only get sound from 2 speakers in the rear of headliner and the very small speakers up at the top of the driver and passenger front doors.It is very hard to hear any sound at all.Could it be the factory amp, blown speakers,head unit??????  Please help!!Thanks JOE

Answer
sounds like the radio was pull out of the vehicle and later install back before selling the vehicle

the infinity amplifier is under the rear seat maybe is missing
if not pull the radio and check the connections
your speakers are ok


good luck