Heater switch wiring

[skinny_pedal]

I picked up a mojave heater but didn't get a switch. I bought a heater(rotary) switch from Napa. Believe from a 70's ford truck. Napa HC313. Any how, anybody know the wiring for this switch so I can get my heater wired. I believe the top 3 are Low, Medium, high. Assuming bottom left my power in? What's the bottom right?

 

[skinny_pedal]

Ya'll were no help:flipoff: I was right:beer: yay for heat

 

[zukkev]

Bottom right, "Common", or ground?

 

[skinny_pedal]

Bottom right, "Common", or ground?

Probably, I just ran the ground to the body per the diagram.

 

[Jacob]

Probably, I just ran the ground to the body per the diagram.

That would be Common...or "C"

Which should be the same potential on your hood, fender, floor board, frame, engine block, and - battery terminal..hense Common.