Hello, I need help with a building a box for my 2015 Chevy Malibu... I'm planning on running my two DC XL M2 12's on a SAZ3000. My max dimension are 21 high, 39 wide, 29 deep. I tried to come up with something on the Torres Calculator but I would like for someone to check over it and make sure, since I have never ran DC Audio before.