2dxmazda
+1y
there is a lot to consider with your question.... buckets or bench is first. if buckets then you have additional usuable space in the center console area. if you know the formulas for calculating area space you can use the air space beneath the seat as well. if you don't need the use of the rear window you can build a 30/60/90 triangle box and then the amp rack could go above the box or behing your headrest area covering the back window. keep in mind that most subs need at least 2 inches of space from the back of the magnet to the inside of the box for venting. hope this info helps. also your height as the primary driver of the vehicle will either help you or hurt you. example i am 5.5 ( short hairy bastard) hehe so i dont need all the space for leg room. some one 6 foot or so needs all the leg room they can get.