I need your guys opinion on what I am doing. I have a 03 with the fosgate system. I like the system and all but I want a little more bass. I also have a set of speakers in the rear doors I need to hook up. Now, in theory, I should be able to use the 2 sets of inputs from the factory sub in back since it plays a full range signal and use that to the high level input on a small kenwood amp I have and use the output signal to run rca's to the sub amp and then to the sub speakers. the rca's have a pass through feature to go another amp. Can anyone tell me if my thinking is correct on this. thanks alot guys.

well for anyone thats interested, this idea works great.