If you have only two switches...I might guess one is for the landing gear and maybe interior power. The way I determined the unlabeled switch was the landing gear, I pushed the switch to the off position and tried the landing gear switches. You might have to do the same and see what doesn't work.
I repositioned the box, which was located on the wall near the compartment door to the ceiling so it would be out of the way. In doing so, I broke one of the switch's where the wires connect...Checked the internet and was suprised they are still available.
How long have you had your Augusta...? Did you get the owners manual and equipment manuals....I was lucky, the prior owner had everything in a bottom drawer.