Im wanting to do this also, sorry for the bump of an old *** thread, but I couldnt find antyhing else on it. I have an 02 Silverado and for now I have a ported box in the middle of the 2 front seats. I want to use my 2 12" TI's but I dont think they would sound good with that small enclosure under the seat, So Im gonna use my old 12's 8122's. Anyone here have a way to get a hold of this guy? he hasnt been here since he posted this //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif I need some plans like that for the box. Im gonna raise my seat 2 inches if that helps.