sorry bro, but that unit only has a CD IN. the CD Changer IN can ONLY be trigged by their bus system. there is no "hack" you can do that will trick their system. this is like sony which kinda sucks. the only units that can be hacked are clarion, pioneer, JVC,blaupunkt,kenwood, select eclipse decks and alpine. you must purchase the aux adapter for he panasonic unit. it starts from 60 or so and up. i forgot the model number but i will try to pull it up. i have used one and its good. it allows up to 2 aux devices, and able to control a CDchanger at the same time.