Though i would bring this back to life oppose to making a new thread, heh....
I want to do the same, but perfectly understand the heat problem.
So i got an idea...
The amp upsid-down on the truck lid of course, but its also in its own small sealed type of compartment, with plexi-glass over the top of the amp, with maybe 1-2 inches of clearing.... from the top of the amp and the plexiglass so it can breath a little...
Then, have a 1-2" round hose from inside the compartment where the amp is, run hidden long the trunk lid down the sides to the bottom of the trunk, or even outside of the vehicle, for intake... and a fan or two blowing the heat from the amp out into the trunk, from the hose sitting at the bottom of the trunk or outside.... or perhaps run it inside the car incase i throw on the A/C //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif
So since the heat sent out from the amp compartment rises, the plexiglass would also be like an insulator between the amp's temp and the temp inside the trunk and wont rise up into the amp compartment till the Fan(s) are off...
What do you guys think? hehe, it sounds easyer than it might be....