Yes, I made de correction. Thanks
Yes, I think the link for the connector is somewhere, it’s available at mouser and other stores
For the connection to the socket:
AIO pin 14 to socket pin 1(true speed)
GND to pin 7 (All grounds should be common on the tractor)
A 12v source from the tractor to pin 6
Optionally the socket pin 4 could also be controled by AOG with the same opto setup an a little code modification on the Teensy ino.