fiberglass overlay

[cockeyed00]

I am planning on making a fiberglass enclosure with 2 amps on each side of the sub. To make it look clean, I want to pu a fiberglass overlay ontop of it. My question is, how do I secure the overlay to the box seamlessly? I have seen many installs where people put overlays ontop of the amps and no screws, nothing! WOW! I WANT. How do you guys do it? Any suggeestions?
thanks
here is a pic of what I want:
http://www.caraudio.com/vg/showimage.php?i=5691&c=508

[MetalMaxima]

Wooden pegs with the seams on the side.

[cockeyed00]

Is there anyway you have pics? I know what wooden pegs are I just don't know how I would use them.

[jujumantb]

more or less you need to make frames around the amps and sub out of MDF that you can stretch and secure fabric to.