just put my saw together and I cant figure out what I want to do. I have a 72 Buick skylark, 2)mtx 9512-44's, 1)tsunami db1100d, and about 11-10 cu ft. to work with. I thought about porting through the rear deck because it has 5 holes about 3.5 in wide in it (from factory i guess) but I cant figure out how I would get the PVC from the box to the rear deck. Any suggestions?