Im not sure if many of you have seen or messed with the Rockford Fosgate 3sixty. It is a great peice for someone that is not wanting to mess with changing the headunit but wants to add different amps and speakers. I have been using this peice for a while now and love it. It will take in high or low level inputs and gives you front, rear, sub and center low level outputs. This way you dont have to worry about loosing your steering wheel controls and having theives be able to look in and see a new headunit.
I have posted a link to it. I could not imagine being without it now.