I would like the contorles in the back seat to be able to turn down the radio. How do i make the 6 disk changer work? thanks for any help

pac swips should do the rear controls. As for the factory 6 disc changer you're beat on that one. Only works with the stock deck.

that sucks can i put in a pioneer changer or is there one that will do DVD's?

What system do you have ?