why dont you just add a ring/plate to the box? or if you can remove the whole sub plate and put a new one on it.The cut out diameter listed online is wrong. I just finished my box designed by Buck, and the 14.125" cutout called for is too big. I can barely get my sub screwed down. The cutout in the box that it came in is only 14". I think I just wasted 2 days and $125. I have barely anything to screw the sub down to. I have to go in on 45's to lock it down. HUGE bummer.