I've only fitted fronts and asked for the rears to be disconnected as the soundstage in a car should come from the front speakers (same as a home audio system).
I have CDT Audio speakers in mine running via a genesis 5 channel amp. The install looks slick but I'm waiting for my Sub Grill before I post up pics.
One thing to note is that a bit of metal cutting may be required for deep 6.5" fronts, there are some usefull threads on this.