W201 pax Heated Mirror Wire?

[ChinaClipper]

Got a bit of white smoke and blew #10 fuse on my 87 190D. The female plug was corroded and blackened. I know there’s a harness that eventually makes it’s weak to connector X5/1 in drivers footwell. I’d rather see if there’s a 0lug source before a wiring harness. Thoughts? Also, is there a handy parts number for this thing? Thanks! Clip also, I’d download a pic, but can’t seem to