You might to get one of these from subthump. It a wiring adapter so you do not ned to cut any of your Camaro wiring. You just unplug the wiring connector form the car and plug in the adapter. then just plug in the rca plugs and just connect the 8 wire for your speakers.
You could get this mounting board so you can use the space where the ba amp is at.
I have the board and JL XD400/4 amp installed that way.