i dont know if this is the right place to post this but... i have a custom (sealed) box for my camaro that are for two 10"s the problem is that i just acquired two 12"s and i need to find out how much cubic feet my box has in each hole. b/c the 12"s i have are recomended for an encloser that is 1 cubic foot per sub in a sealed box. i just need to find out how much cubic feet my box has now so i can deside if i want to cut the holes bigger and use these subs or just buy some 10"s. lmk what you guys think. is there a way i can find out how much cubic feet my box has?