Anybody know how to activate rear power outlet?

I checked the fuse diagram and the one that i thought would power the rear outlet in my fiesta s only has 1 terminal and so I can't put a fuse there. I just don't get it. I took the cover off the outlet in the rear and it is wired and ready to go.
The front outlet works but the rear does not. I'll look again to see if i'm just blind. The ones that did not come with a fuse from the factory only have 1 terminal so it can only hold a fuse in place but it does not help anything.
I've checked it and either I'm stupid or Ford is mean lol.There is not a connection for fuse 33. Why would they run the wire to the rear and put a power outlet if it could not be used.