I picked up an AQ HDC3 15" dual 2 (copper coil) and need to build an enclosure. The tricky part is getting it between the bucket seats in my 1994 regular cab chevy pickup truck. I plan to do a slot port enclosure, but have no idea what frequency I should tune to or how many cubes I should shoot for. I couldn't find the info on audioque's website. I planned to mount the sub facing the dash with the port on the floor and also facing the dash as I had some success with a similar box setup. Variation suggestions in this are also very welcome. If I am leaving anything out please let me know. Thank you in advance for any suggestions. And sorry if I'm posting incorrectly..noob here.