I have a ranger ext cab with the little seats out and all the room in the cab. I was just trying to get some enclosure suggestions for my sa12. I would like it ported.. so I'm looking for a tune that will get low but not sound terrible on anything but rap. I heard that downfiring sounds good in a truck because the sub can load off the floor. Has anyone heard upfire, sub facing foward, and downfire.. and what port direction?