1974 duster starting issue

This is a simple circuit, the path is: Key in "start" yellow "start" wire should be hot---------to the switch connector at the column---through the bulkhead connector---to the seat belt reset / or bypassed---to the start relay---through the relay coil--out on the neutral start switch terminal of the start relay----down the firewall to the center terminal of the NSS--and to ground when the shifter is P or N

The relay activates..........

The big "stud" is always hot from battery--through the relay contacts--out on the "square" screw terminal of the relay---down to the starter solenoid on the no12 or no10 wire coming off that terminal