There is no difference between the HU on the BA and non BA system right? From reading other posts where they've kept the stock HU I feel pretty comfortable that the source is clean enough.
Right now I'm leaning towards:
Keeping stock HU by following
http://www.camaro5.com/forums/showthread.php?t=213330
Adding my subs and amp.
Adding a lowish power 4-Channel amp to the factory speakers.
I'll see how this sounds, most likely it'll be plenty for me.
My remaining questions - is dynamat/other products similar to the CLD tiles from sounddeadenershowdown; in that I can do the 25% coverage on doors, roof, and trunk to kill most of the panel resonance - or do I need to coat the area like you see in most applications.
Lastly, anyone recommend any must do areas for sound deadening for the Camaro? It looks like everyone at least coats the spare tire well and puts dynamat under the 6x9s.