Front: Polk And you will want these since the Camry in front has 6x9 in the doors.

Rear: Polk

Amp: Pioneer

Very simple to install and will sound great. I would also look at a subwoofer too. You need low end from somewhere, but you don't have to be super loud. You can just get a nice little 8 so you can have so low end. Door speaker/rear deck will not give you lows.