Hello people, this is my first post on this forum. I have used aeroports in the past but something tells me a 6" aeroport will be too small for a 15" BTL. I want to build a slot ported box for it but never made them before. I have a 2005 Impala and would like to build a box around 4cu. ft without port area. Can someone help with the dimensions of the box? I would like to tune to 32 hz but am open for suggestions. Power will be from a Sundown SAZ 2500d , XS D3400 and 300 amp DC power alternator up front. Thank you. I will post trunk dimensions in a few moments. Thank you.