I BUILT A BOX THA T IS A WEDGE STYLE. IT IS 35", LONG WITH A DIVIDER IN THE MIDDDLE, 15" TALL, TOP DEPT IS 15", AND BOTTOM DEPT IS 20". I'M RUNNING 2 12"S. I HAVE THEM FIRING TOWARD THE BACK OF THE TRUNK IN A 2004 GRANDAM. I'M WOUNDERING IS IT BETTER TO PORT THAT BOX OR LEAVE IT SEALED. AND IF SO WHAT SIZE PORTS AND WHERE WOULD I PUT THEM. ANY INFO WILL HELP