The RCA jacks in the DEH1000 are rear outputs. Sorry to tell you but Pioneer wouldnt put AUX in in a cheap *** deck as the DEH1 series. Their higher end ones do. Most deck makers put AUX IN in their higher end decks. If it controls a changer then they might offer AUX in adapter that ties in the changer port. I know SONY does. Their AUX-IN module also accepts USB port so you can hook it up to the carPC.