2103 Exterior Electrical plug on Slide

[Redwood 31SL]

There is a small electrical plug on the upper right corner of our dining slide. (31SL). The plug is in a circular shape with the two openings also in a circular shape. This is obviously for a very specific type of electrical connection but I can’t image what one would plug in at the top of a slide.
Suggestions???

[r time soon]

It is prewired for a 2nd awning. Marinco is manufacturer.

[Redwood 31SL]

Thank you for your insight on solving this mystery. That totally makes sense diner there is a second awning switch in the garage compartment.
We will definitely look into adding an another awning as it needed.

[XCMARK]

that outlet is to power the motor extend and retract , the outlet above is correct!