Put the dremel to that section of the enclosure. Ground it almost paper thin. Cant just cut it out of the way because it is a sealed box. That was enough to push the speaker in enough to screw it down. Added a bit of caulk around the speaker to seal up the old holes and any possible air gap between the speaker and the box. Going to start scotch padding the tub to get an extra heavy paint protection done. Might start putting in some amps and such too. Finally getting this "quick " project moving again.