Andy & Kevin, My unit has A/C and the wires are there for it, so that's not what its for. I guess it could be a 12V
The water heater is on the curb side next to the oven. My electrical panel is on the opposite wall inside the bathroom closet.
I used a meter to try and find the other end but no luck yet.
Also I see that some of the wires are aluminum, years age they recommended replacing aluminum wire because of fire hazards in homes. Are there any great concerns leaving this wire in use, since replacing it would be next to impossible without removing interior skins.