Originally Posted By: ingoldsby
Ok, I messed around with it some more and the shop that originally installed the empeg in the car cut the 12v/ground wire that the radio module plugs into. I spliced those back in and it now sees the radio.

I really don't understand how most installers can ever get anything working. A large percentage of them absolutely butcher the wiring looms and the empeg just confuses them even more.