I built a box for my dd 3510sc and it is alright but it was my first box and I feel like it can get louder. I can build another box but I really have no idea what I am doing lol. I think I can build the box if I had a design in front of me. So who can design me a box for my sub? It is being powered by a Crescendo bc2000d. Also it would be going in an extended cab s10. How much if any would it cost me? Thanks in advance!