i was planning on converting the plastic storage bin under the rear seats of my '10 cc.. i was thinking of plugin up all of the holes and just use a peace of 3/4 mdf for the top.. and just make it look pritty after that.. thats were i run into a problem.. nor bondo or fiberglass likes to stick well to plastic, are there any products out there that might work for my application or should i just make a custom box??? i have only done small projects with fiberglass never a full box..i am going for a completely stock look.. so thats why i would like to use the stock storage pin. i have already bought a rockford 10" shallow mount, with there mesh grill that looks really stockish like. any help guys would help!!!