Detached wire, running, but no headlights, turn signals or horn

[JamesNordstrom]

1928 Ford Model A Tutor, car runs fine but headlights, turn signal, stop lights, break lights, and parking lights all out, I found a wire that looks like it should be connected somewhere but not sure where, or what the wire is used for, it’s part of the electrical harness https://drive.google.com/file/d/1EJX...w?usp=drivesdk

https://drive.google.com/file/d/1B0Z...w?usp=drivesdk