I do like the 2A & 2B packages, Is there a reason why they are pioneer subs? Have you done anything with the JL 13" ultra thin sub? I was trying to hold off on the audio upgrade but everytime I drive the car the stock sony system pisses me off, they should be shot for calling this an upgraded system. My mustangs shaker system is way better than this, would hate to see what the non upgraded raptor system sounds like. Only other thing is for sound staging does the rear speakers need to be a matched set of components or will a slightly less expensive coaxial be OK. I never sit in the back so not really worried as much with how well it sounds in the back as upfront. Those riding bitch will just have to suffer..