Project car: assuming bad starter relay. Confirm?

-1969 Barracuda
-318 originally
-Factory 4 speed (looks like no clutch safety post on starter relay)
-Recently put power to the system for the first time. Power going correctly through the bulkhead “J” connection... And back out through yellow wire to relay.
-I’ve scoured the entire starter relay (and connections) and rebolted it to the fender.

Yes, I have many versions of the electrical diagrams.

I’m getting excellent voltage at the yellow (now grey, along with ALL wires in my engine bay... a previous owner painted entire bay and wires) wire when turning ignition switch in “Start” position. Correctly no volts when NOT in “start.”

No voltage EVER gets to the “Sol” post on the starter relay. I do get voltage at the “Sol” post when I connect a jumper wire from yellow Ignition post to “sol” and only when I twist key to “start.” Relay never makes a sound (clicking?).

C8F13EFA-D303-4F9D-839C-26607EAA97FF.jpeg