Lol, okay. My current subs we just drilled straight down through the sub. My dad helped me, but he is mad about this system and won't help me for anything. I have a plan. I'll do what's said and mark the holes, and pre drill about 3/4 way. Then, to get that extra snug fit, I'll drill through that last 1/4 with the sub in, using a piece of wood as a guard. It's a two man team working on it, I think we'll manage.