A 20 dollar connector pin after 6 hours is honestly the most relatable thing I've read all week. I spent almost a whole Saturday once chasing a no start on my truck and it was a ground wire that looked fine but wasn't. The worst part is you can't even be mad at the pin, it's just a little piece of metal doing nothing. That night you probably felt like a genius and an idiot at the same time, which is pretty much how every fix goes for me. At least now you know that one for next time, that's what I keep telling myself anyway lol.