I installed a new stereo today in a 2005 roadster and there isnt any sound from the rear. There wasnt any sound from the rear with the old radio too.

I havent "looked" back there for speakers yet but I did try to run my arm back there while sitting in the seat and didnt find anything. I knew about the subwoofer style design from reading other threads in the past but Im beginning to wonder if all crossfires had rear speakers?