hi all, i've a 98 jeep cherokee with factory dash stereo am/fm & cassette, and no cd changer. i'd like to use the line in of cd changer for using my small mp3 player in my car, but the stereo says:NO CD; anyone has a wiring diagrams of the 8 pin din connectors to cdchanger, or has any tricks to make usable that line in???? thanks in advice!