I'm just trying to learn how the magnet diameter should play into sub depth in a wedge box.. Have a 04 reg cab silverado i have a desire to install 1 or 2 subs in. I understand that the magnet on the sd-2 is larger than average, interested in a 8 or 10, i have noticed the 10 carries a different cut, will this have a dramatic effect on fitment? Any help given is very much appreciated, thanks.