I used crutchfield for my set up and couldn't be happier. I run Boston Acoustic S Series all around (5 1/4 doors, 4" rear deck, 6x9 rear deck) powered by a 75w rms 4 channel sound ordinance amp. I have a JVC kd hdr50 head unit with the bluetooth adapter and the PAC steering wheel interface.

I also still have the stock tweeters going as the S Series are full range. So 8 tweeters make the highs very clear, especially help in the back.

With my sub install, I also put in one of these.
Grand Prix 1992-2003 - $65.00 : Humount, Quality Mounting Brackets