R & B #1
At the Given/Posted Coordinates,
(that are shared with R & B #2)
observe multiple round electrical outlets
Concentrate on the two smaller ones in the middle,
from those two, focus on the one to the left,
and capture the seven letter word -
you will use this as your Certitude keyword.
Use Certitude to reveal the Final coordinates.
NOTE:
If you are under 5' 8", you might need something to stand on to retrieve cache, or bring a friend.
You can validate your puzzle solution with
certitude.