Just checked my 15k VIN and no 12v harness. Not a good idea to connect any load directly to the 12v batteries could cause voltage detection issues or kill your 12v.
I was planning on adding some SAE connectors to the batteries and route them out the bottom corner of the windshield. This way...
It looks like this one will fit the gear tunnel and frunk it is not true dual zone but can have large compartment as freezer and small as refrigerated. And at 1/2 the price of the iceco.
BODEGA 12 Volt Car Refrigerator, 20 Quart
https://amzn.to/3m1HE5q