Since the trunk will no doubt get hot, and so will the amps, especially behind plexi-glass, i had to devise an air-managment system. Aka FANS. Most cars have air equalization vents. You know the little vent in the trunk with the rubber flaps that lets air out, but not in. The Lexus has 2 of them. One on each side. I decided to take the driver side vent, and reverse it, allowing the flaps to open when the fan kicks on. It will close when the fan is off. It is up inside the bumper and gets no weather, so no worry's.
Removed and flipped backwards, to allow air in.
106 CFM on the big fans (1 per side), 50 cfm on each of the smaller ones (x3 per side).