I have an mp3 with the stock system and it sounds pretty good but I want something a little better. This is what I was thinking, so you guys with some of this equip tell me what you think.

Leave the stock Z919 head unit
Boston 6.5 pro's in the front
Move front speakers to rear doors (nonthing there now)
Leave deck speakers Kenood 3-ways
Replace Sub with 1 JL 12 W7

I would like the Dynamat pro trunk kit (light weight). Should I do the full door Dynamat or just the speaker wrap? Any Good amps out there I would like at least 250 watts per side for the front and 1000+ watts for the sub. also I was looking for good sites to buy this stuff at. thanks for the help