so after a lot of time putting things off, i finally went ahead and did the full stereo. i got focal polyglass comps up front and coax in the rear door. downsized the sub and did a sealed JL 10W3. everything powered by the alpine PDX 5 channel amp. cant talk really technically on anything...but everything sounds good to me. anyone with questions feel free to ask, not sure how much help i could be though. and thanks to everyone who gave input when i was still deciding what to buy.