Enough with the BS guys help him out. Dont worry about your design as im almost 99% sure that its will look like some one elses if you keep it under window line. The only way for yours not to match any one elses is to fiberglas the wholething the way u want it. There are always going to be things that are the same about everyones system. And who ever wrote hes trying to be like Meade. Im pretty sure alot of people run Fi BTL's. I know i have 2 15" in my Trailblazer. Its what you like and hell maybe he got a good deal on them, thats the reason i have Fi not DD or DC. The burban has alot of space. I would say ditch the tire cause once you get the system in there and a flat tire your not going to be able to get it out. Fill that space with double stacked batts. Contact basscort2009 i know he sells batts, and i know dappa5, vitvett also design boxes as they may have a design that fits your needs. deaden the **** out of those back doors as they will flex alot. GLWB, if you would like you can pm with questions.