This is out of my personal archives, an install I did with a buddy of mine who was also a professional installer for a period of time (Circuit City guy), and we did the install for one of his friends. We did it out of my shop/garage at my house.
Needless to say, he was a basshead.
I don't remember which 12's those Sundown were, but they were beastly.
The amp was a Kicker Warhorse, and one thing I thought would make this install interesting was to make the amp rack also the vent for the wall of twelves there...
The Warhorse is actually the bottom of the vent, and the 3/4" plexiglass cover is the top of the vent.
EDIT: This is the build sheet for this specific amp. That's RMS watts - still the most powerful single amp that I've ever installed.
But first, the trunk... had an Xbox 360 and a separate component set for playing games back there. Built storage to hold games and controllers securely.
Didn't really need to worry about stuff rattling when the bass hit, since the wall of subs was inside the car.