i had infinity 62.7i in my 02 vert and they sounded awesome, im going to get another pair for my 94 t/a. If i were you i wouldnt put anything in the sail panels if you have a sub/amp back there, it wont really add anything to the car IMO. A good set of front and sub/amp is a good place to start with and then add some decent mids in the back seat and you will be set.