OK yeah I know its snowing still. But not having A/C in my truck sucks, and for a few years I have been thinking of building something like this myself. But with a few mod’s of my own. All you need is a fountain pump, radiator from some old appliance, and a cooler, oh PC fans too.
Of course this build involves AC instead of DC off a car….
http://www.instructables.com/id/Keep-Me-Cool-Portable-Air-Conditioning-Cooler-120V/