Alright, I'm wiring everything up now. My radio has a blue wire labeled "AUTO ANTENNA B(+)". There's no spot on the GMOS-04 for that wire. Where does it go?
EDIT: All wires are connected and crimped properly, I've verified that (RCA connections from my radio are connected to nothing). The radio functions, but I get no sound from my speakers whatsoever. Also, the memory isn't working on the radio as the station resets itself every time the car is restarted. *sigh* I'm probably going to have to bring this to a professional....