Are you driving the JL Audio 6x9;'s with the factory amp? Is it the base system or the Beats system?
Aside from maybe minor trimming in the doors, was it easy to mount them? Is removing the door panel the most difficult part?
If you used the same JL Audio's in the back, would they be pretty much a bolt in swap? Splicing wires does not both me; cutting more than 1/4-1/2" of the deck or bending lots of metal would bother me.