[biohazardbill]

The only thing we ever used rear speakers were for fill.. and that was only in cars or extended cab pickups. If you are looking for bass then there is that but you are talking about 6" or 5x7 etc which arent low end drivers. In my opinion since you are already getting kick panels, get them without speakers. Get a good quality set of speakers and throw them in there along with a clean amp. With a setup like this you wont need rear speakers for mids and highs.