I have replaced the turn signal connector with some modern pigtails because I was unable to source an original connector.
I have the terminals listed 1 through 8 on the connector. Here's what I have them labeled as and what they're connected to:
Terminal 1: Horn Ground - connected to painless wire 963 "horn switch"
Terminal 2: Left Turn - connected to painless wire 926 "left front turn signal"
Terminal 3: Right Turn - Connected to painless 925 "right front turn signal"
Terminal 4: Emergency Flasher - Connected to painless 951 "Hazard B+"
Terminal 5: Turn signal Flasher - Connected to painless 952 "Turn signal flasher B+"
Terminal 6: Left rear turn signal - connected to painless 949 "left rear turn signal"
Terminal 7: Right rear turn signal - connected to painless 948 "right rear turn signal"
Terminal 8: Brake switch - connected to painless 918 (brake switch). There were two 918 wires in this section, I connected both of them.
