ok heres the problem,I had to replace my whole left side door.I got a door off a 93 camaro but mine is an 94.I saw that the wires were different colors so I just used the wires from my old door.
the wires were cut when I had to take the old door off,so now I connected them all together with the same colors.but there are like 2 same wires with the same colors.there are 2 blacks,2 gray and 2 orange.the black are for the power mirrors which work fine.The radio will turn on but no sound only buzzing Im going to try to switch the gray wires tommorow and see how it goes
and how many amps are there?is there each amp in both door or only one?

 

Try disconnecting the speaker and see if the stereo works. It doesn't seem like there would be an amp in each door, sounds like there would be one under the dash, but I don't own a 4th gen so I don't know.

 

I alredy tried that still the same.the radio turns on but no sound at all