I am looking to build a box for my Nissan Altima, I have two SA8v2 dual 4 ohm. I want a box that will play music but will be the loudest design. I have multiple amps I can choose to use from 1000-3000 watts. Not sure what will work best a 4th order,6th order or vented. I would like to cut a vent in my rear deck to allow the bass to flow through, Any input is greatly appreciated.