I know the connector on the left is the NSS (purple/green), the one in the middle is reverse lights(pink/green), what is the pink/yellow connector for on the right? I'm guessing seat belt buzzer or something? I can't find an exact wiring diagram for 1975 Chevelle and I haven't had time to test it but thought I'd see if anyone knew off the top of their head. Thanks. Hopefully the image uploaded, haven't done this before on this website.