360 alternator oval plug

hello and thank you ahead of time, on a 360 2002 the oval alternator 3 wires, one is from the battery positive fuse, the middle wire is from the ignition and relay behind drivers seat and on a car without battery charge light, where does that wire goes ? Thank you again

 

I appreciate the response from some of you guys, as you know I started with alternator not charging but the car started every time.
After dealing with a couple of rebuilt units I decided to go for new, FerrParts $825 but was not able to make sure that the unit was functioning properly as the car will not start or crank.
Battery is new and voltage is 12.6 v , there is 12.6 v at the starter and can be jump with my push button and it cranks perfect, I can also jump the starter relay behind drivers seat.
The Green module under the dash covered in plastic has any thing to do with this?
I read someone had to get Ferrari to align gears with the scanner as they go out of wack, and I also kept hearing a relay clicking, and it was the reverse relay, I took it out reset the alarm and stopped clicking.
Is there a scanner I can buy for this function? I live in Key West and is 3-4 hour drive if traffic is good,I also would have to get a trailer or tow it, When the problem started I was driving home from Miami, 5 miles away from home and they wanted $550 for 5 miles.
Also I had the top up as is was a nice day and has not been able to close the convertible top, so it seats next to my Testarossa in a climate control garage.
I know this is a lot but I truly would appreciate any help.
Happy new year!

 

yes but it goes off immediately without the car even cranking. So not like a regular charging light.