Ground to what..??

nodemon said
72 Demon
Drivers side headlight harness..
Wondering if anyone can tell me where this attaches... There doesn't appear to be a bolt in the area it'll reach.View attachment 1716353484 View attachment 1716353485

And make sure the paint is gone on one side of the panel or other. Use a grounding washer. Think about the ground path and how it works.