Audio Systems: 1992 Mazda mx-3 stereo problem, mazda mx 3, internal amps

Question
I just bought a 1992 Mazda mx-3 just yesterday. Its in really great condition and only had 22k miles on it. I have a problem with the stereo though. The guy that sold it to me said that it was working fine up intill 3 days before I bought it. Everything comes on(lights up) so i could see the station and everything. the problem is that no sound comes out. It's not the fuse because i replaced it and it still doesnt play any sound. I have no clue about this kind of stuff and i would greatly appreciate some advice. Thank you

Answer
You have a deck and four 5 1/4" speakers.
It would guess that either the speaker plug came loose from the deck or the internal amps in the deck have gone bad.
You best bet will be to take it to a place like circuit city and let them deal with it. A new deck should cost over $80-100 usd plus installation.