Hi,
Be carefull with a fridge for the awning. Most, if not all of the fridges designed for gas will use lots of electricity when run on 12v, enough to flatten a battery in a few hours. Stay away from Peltier element ones (normally marketed as coolers) as they only keep food a certain number of degrees below ambient temperature, so on a hot day in your awning you will be pushing some limits.
There are 12v, or 12/24v fridges and the best has to be the Engel, expensive but worth it. These things will last for years and their consumption is minimal. I had one in the back of my car in Croatia two years ago, in the middle of an exposed car park, in a lot of heat, for 48 hours. I was so concerned that I went to check it after one day, all was fine. The car started first time as well, although it does have two batteries. They also have a thermostat that lets you choose between using it as a fridge, or as a freezer.