You don't really need to know the amp size or anything like that. The only thing you need to worry about is your sub size, and the cubic volume it needs as an enclosure. Basically you remove the spare tire, and build a box inside the wheel well to the demensions the sub/subs require. Then all you have to do is make a board to cover the box and the remaining wheel well with a hole in it for the sub and you should be all set. 👍
Your best choice for type of box would be a sealed, as it requires less space then a ported. Your subwoofer should have the cubic space needed for a sealed box listed on the papers. Using your knowledge of mathematics, simply made a 5 sided box (with either a small hole, or clips to attach the speaker wires too) to those demensions that will fit inside the wheel well to glue and nail to your outter board. Make sure to cut the carpet away from the area where the sub will be attached to help prevent air from escaping.
If any of this seems complicated to you, go to a car shop and have it done for you since its something you don't want to mess up. Hope that helps.
