Oh damn. Is this what happened to your power mirror adjustor ?
Looks good ! God bless nice days heh. I have to do something about mine as well. Let us know how it holds up [emoji41]It was a nice day so I decided to try to seal up my rusty leak.
I tried to fix it once before thinking it was leaking on the side of the windshield.
I scraped out the rusty crud and sealed it up on both sides with silicone...
It doesn't look too cheesy... Let's see if it's sealed,.. It's supposed to rain all day tomorrow so it should be a good test.
It's too late now, but as long as you were in there scraping off rust it might have been a good idea to treat the area with one of the "rust converter" products, which change the surface chemistry and make it more resistant to rusting.