thanks for the help folks

found a slot in the bottom labelled as a line in/line out switch but no switch is visible in the slot. I'm giving up on hard wiring it. I just want the head unit to work and I will use the fm tuner.

can't find an amp cancellation switch. Is this hard switch or software? is there a diagnostic mode for these decks as I can't find a menu. the car came with the radio so no manual. no sign of

also, does anyone know what/where the power antenna control switch line would be on this deck? a friend suggested that it might be stuck on from me unplugging then replugging the unit and causing this. my power antenna is controlled by an oem dash switch so the power antenna control is not hooked up afaik.

finally, how many fuses would this unit have. same friend said probably two but I can only see one in line fuse at the rear which is not blown.

this particularly sucks because i connected the sirius before i did this based on the fm tuner so now i'm paying $15/month to have no radio at all!