Well, this thread has alot of good info, but not sure how many people have to deal with the extreme heat of AZ - thats why I asked in this thread.
http://www.mp3car.com/vbulletin/showthread.php?t=23139
There seems to be alot of drawbacks to the trunk, especially since the conventional ways of cooling with fans and heatsinks will not cool below the ambient temp which can get high in a sealed trunk. That is why I am ducting AC which in my case is easy since I am mounting the PC in the dash below the center AC vent
