I just recently started to fiberglass. I started off with a small project for school and very quickly learned the how to's of fiberglassing. Its not hard, ask anybody who has done it. And just a little FYI, i have 4 amps in my hatch, 2 behind the rear seats and 2 under the front seats. I have never had a problem with the amps under the front seats overheating, but then again, they are only pushing about 400W.