I got a 2001 dodge ram 1500 extended cab, and when i put the 5 1/4's in the two rear doors, i noticed that there was a lot of room in there. Can I carve a hole in the door and plastic door panel and put some subwoofers in the doors? If so can i put 12,s? In the truck so far i have 2 - 6x9,s in...