Question [Q] Nexus 7 Mounted in Mercedes C300

I installed my Nexus 7 onto my dash (which sits up close to the windshield) in my Mercedes C300. Unfortunately, where I live, the heat is gruesome. I park in the shade and put up a windshield shade, but my tablet powers off due to the ambient heat. Do you guys have any ideas as to how I can keep this tablet cool?