My friends ridiculous show/SQ system in his 2001 Chevy 1500HD Crew Cab. I'm putting the car on ebay for sale in a couple of days.

Note: Subwoofer install involved cutting a hole in the floor and fiberglassing a huge box under the car to hold air space (it's a 12" Eclipse Titanium).

Enjoy...

http://myweb.thump.net/629819/1500hd/

 

geeeeez talk about a system, that is one clean a$$ install tho

 

Nice install. Very very clean.