I have a 2002 2500HD - came with a factory AMFM CD player. I added the front console(under the dash) and installed a factory add on tape player with factory wiring harness to the original radio/cd player. - What else do I need to do to get it to work?It will not hold a tape in or operate.

 

I have a 2002 2500HD, with built in tape player...its not plugged in...if I knew how to get it out id send it to you...