I recently purchased two magnum d2 12's from stereointegrity.com. These subs are incredible! I am currently running a JBL BP1200.1 and am selling the amp to purchase an Earthquake PHD2 Shredder. Anyway, I am drawing a few box designs of my own, however, I would like to know if anyone out there has seen a really sweet box design for a 2000+ model jeep grand cherokee larado. I would like to have adjustable ports so I can fine tune accordingly. Any information would be greatly appreciated.