Alternator Upgrade Which wire where?

There was originally no brown wire (to the VR) that I know of. I can't imagine what that was

Originally, green from the alternator field went to the F terminal of the regulator. Only one terminal left, the "push on" one was IGN

This is good news. I couldn't for the life of me figure out what it was. Will try the install without it and see what happens. Very much appreciated. Thank you.