Howdy all. I have a 1992 Camry with a factory am/fm cassett in it. I want to add a factory CD player to it. The CD player plugs into the back of the radio but when I do this I get no sound from the speakers. If I turn the volume up all the way I can barely hear any audio from the radio, cassett, or CD player. Because I can hear something I know all 3 are working, they just are not working properly together.

I had read that there is supposed to be a switch on the back of the radio that needs to be flipped from the *P* setting to the *D* setting(for dealer installed option), but there is no switch on my radio.

I am in need of any info anyone may have on how to correct this problem. Is there a switch elsewhere?? Does something need to be added to get them all to work??

HELP!!!