Okay, maybe I was just being dumb. The Pioneer has a harness with RCA connectors on it that serve various purposes, including front and rear speakers. When reading the install manual it states that these are to go to an amp that powers these speakers, that's why I didn't think I was supposed to connect them. Like I said on the Kenwood I just plugged these right into the back of the head unit. At any rate I might have a different problem... the radio won't turn on. I figure even if I don't have the speakers hooked up it should at least turn on. My fear is that perhaps the GMOS-LAN-02 adap