I am looking to make a rectangular shaped box for the trunk of my car. Dimensions would be something like 30" across, 7-10" deep and about 15" tall. Can I use acrylic or plexiglass on the 30"x15" panel that is viewible and mount the sub on this panel. If this is possible, how thick would it need to be and would I need special screws to mount a sub on an acrylic panel.