I am asking a lot of questions lately because I want to get this system perfect and not mess anything up...So... How should I go about building a box for these. I want to have both subs firing inwards towards the car, and the seats fold down so I want the subs/box as close up to the seats as possible. It says rec. enclosure is .88cu ft, should i double this since there are two subs? Also, if I built this box it would be my first time, so should I have someone help me, or have someone build it for me etc.