The CARCASS converts the J Link CD changer port to stereo RCA inputs, allowing any ACA level device to connect directly into the JVC audio system. Use to add: Compatible JVC receivers” Digital Satellite Radio Kellie Portable Mini Disc Player Kosher Portable MP3 Player KDEX750 Portable CD Player Kindness Mobile DVD Player KSFX250 Mobile VCRMVCP KWXCT70 Game Systems “Note: Use only if GD-changer is not present. installation Instructions: 1. Turn oft ignition. 2.