Unfortunately,it looks like that headunit does more than receive a simple AUX on signal from the CD Changer. I had the board schematic for mine and still didn't feel comfortable running power into it until ElectroKen interpreted them for me. He may pipe in with some help here. I don't see what he can do without the schematics though. Maybe Richard Krenn can give ElectroKen schematic info and then Ken can interpret it for you? The service manual only cost me $10 with shipping for mine. Even with duty fees and Canadian difference you shouldn't have to pay more than $20 Cnd for it. Call Pacific Parts with your Model number. If you screw around and juice the wrong wire it will cost you more than $20 Cnd to fix it.