[RXtacy]

I don't have any experience with the non bose system, but I know on the bose system you had to either wire it with pre-amp leads, or get the schoche adaptor which only allowed for two channels. Unfortunately that is not what is going on here. I would imagine that the head unit is not turning on the amp. I can't remember the name of the wire but usually there is a blue white wire coming out of aftermarket head units that is an amp controller that needs to plug into the amp feed.