I just ordered my first REAL sub, AQ HDC3 18. I have a 99 Dodge ram 1500 extended cab and I am planning on using every bit of the back for the box. I want it LOUD. I am running Power Acoustik (i know don't say it) BAMF5500 @ 1 ohm, 3 deep cycle batteries, 1 .5 farad cap (for looks) and soon be adding another 200 amp alt in addition to my 135amp factory. Suggestions for size and tuning? I have seen setups doing 150+ with one 18.