cabin air space

i have had this in the back of my mind for a while now, is there a way to figure out the best sub wookfer to work in a certain cabin air space? is there a way to find out how much air a speaker moves and match that to the air space inside a vehicle?

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fill the car with packing peanuts then measure them in a box that you know the volume of. or you can get a roughestimate by getting large measurements and then seeing how much the cab is. but packing peanuts is proably the best idea. hard to get they all out and in but would do the truck.

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but where do i go from there? would i calculate the box as is where making a 6thorder and the cab be the front chamber?

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are you trying to use the cab and make a badpass? i would say just a big slot port would be fine. then you should be able to see how much air a sub can move. but it would be better to move more are than is in the cab, would give you a higher SPL.

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