Kenwood KDC-MP522

My son owns a 1994 Camaro Z28. I took the Kenwood unit out of a 1998 Chevy Malibu. When I put it in the Camaro the unit powers on, the volume level changes, stations change, but no sound out of speakers. I checked my wiring on the adapter and it is wired correctly. I also checked a wiring diagram of the car and the wires of the car do match the wiring of the adapter. Does anyone have any ideas?

i don't really know that much about wiring but maybe you should take it in to a shop to get it checked professionaly. thats my idea.

My son owns a 1994 Camaro Z28. I took the Kenwood unit out of a 1998 Chevy Malibu. When I put it in the Camaro the unit powers on, the volume level changes, stations change, but no sound out of speakers. I checked my wiring on the adapter and it is wired correctly. I also checked a wiring diagram of the car and the wires of the car do match the wiring of the adapter. Does anyone have any ideas?
I had the same problem just with a different car. but all i had to dao was change the fuses.