badpuppy: Outstanding! Very intriguing project, and a great web page. The photos and instructions were very, well, er, cool!
I live in a state which has no open container law at the present time, the legislature has been dragging it's collective feet on one for years. So, I could definitely use my "armrest cooler" to keep my Corona's cold while driving around! However, since I have a CDL and make my living with my driver's license, I wouldn't actually drink any of them until I got home!
I wonder if that armrest area would be big enough to stash a half-gallon of milk for the trip home from Safeway on a hot day?
BTW -- since you have that Peltier cooler wired directly to your battery, I hope you have in-line fuses on the leads going to the battery terminals. I didn't see any mention of them, just a reference to the possibility of wiring the device through the fuse box, which would be fine as well.