So im fixing to purchase the dd and i want to build an enclosure for it. Its going in a 2002 harley davidson edition f-150 as the rear console. I have at most 28inches long(from back of cab to the rear of the front center console. I have 18 inches in total width(seat to seat). Also, 16 to 17 inches in height. So say 28x18x16.5.... Thats 3.8 cu. ft. that should be way too much right? I need ideas on what to do. Sub up port up,sub front and somehow port front? sub to the back port to the front.. sub down port down.. Just what i should do and what tuning i should make. I mainly like low bass. I was thinking somewhere around 32-35. What should i go with 2.5 cu.ft. A little more or less? At 2.5cu.ft. should i do 40 or 50 sq.in. of port? Can someone please tell me what the easiest online calculater is. I can't seem to ever match the right sq. in. of port up to the actual length to get it right. tuning is always in the 40's! Thanks and sorry for the long post with a thousand questions.