Ok i got a 1983 chev s10 extended cab, ok the backseats fold in and out on either side of the truck and when the seats are out there is quite abit of room behind the seats to put subs in, but the thing is that i need to make a plexiglass face that the sub fits in,Im takin out the seats but it is all plastic where the sub is gonna be sitting... arg this is hard to explain, I need to mount the plexiglass but i cant just mount it the plastic i need to do somethin, i need help!