Due to lack of space in my small trunk (audi coupe -93 with a sub in the trunk) i was thinking about makeing a small refridgerator of the small space beneath the trunk (its empty because i keep all the tools in the spare tyre).
I was thinking about trashing a 12v mini fridge and connecting it to the backlights of the car (to make sure its only cooling while the car is running).
I have done some small research about Peltier System/Thermoelectric cooling but im still not sure ow exactly i should do this.
Have anyone done this before? Do you know any better ways to turn the empty space beneath the trunk into a cool place to keep a few beers or water?