Looking at a 74 wiring diagram, I suspect the little one is for the "key warning buzzer". The big one looks to go on to the "ignition key warning switch" BK-PK H, "head lamp on warning relay" BK-PK H & BR, "head lamp switch" BR, "parking lamps" BR, "head lamp switch" BR, "tail lamps" BR, "L.H. door jamb switch" R-PK, "horn warning actuator" R-PK & DB, "horn" DB, "horn switch" DB, "brake warning light" LG-R D, "park brake signal lamp switch" LG-R D, "ash tray lamp" LB-R (along with other dash illumination lamps).
Hard to put drawings in to words. If you are going to do a lot of this, maybe get the wiring diagrams. Presently there are some of the big 17" by 31" fold out Ford OEM wiring diagrams on ebay, search on "1974 Ford Pinto wiring diagram". Good luck.