I'll actually be building one here hopefully next month, or august. Once i finish the purchasing side of my system, i'll be putting everything in. I've already got the a JL sub, 4 channel amp (for the speakers) and Hertz speakers all the way around, but i still need a new deck, a second amp for the sub, and the wiring. Than me and my buddy are going to build the box. actually, he is going to build it while i go to town taking out panels and rewire everything. The plan is to have the sub take up half of my rear seat (under it of course) and hopefully leave room for the amps to be over the tranny tunnel and still have space on the passenger side to put stuff there. We will see how it goes but i'll be posting up pics once i get it all in there, and pics of the begining to end install!