wish2fish
Active Member
I am upgrading the original Panasonics to JL M770's. I will need to enlarge the original speaker opening out to approximately where the screw holes are in the picture below. With the vinyl surrounding the area it looks like it will be difficult to use a jig saw to cut the opening. Do you have any ideas as to how to cut this fiberglass? Also, are there any suggestions to keep the fiberglass from flying everywhere?