Starter clicks using the key, engine starts by jumpering the relay

67dart273 and I have both said the same thing here.

It is REALLY easy to identify the bad component.

A remote starter switch.

Red to battery plus.

Yellow to the propper wire on the starter relay.

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I like the idea of a remote starter, thanks. I’m working today, but will get after it in the morning.
^^One correction, "not" IGN2. IGN2 (brown, normally) bypassed the ballast and is a separate circuit from the "start" wire (yellow)

He has a 74, so if it has the seat belt interlock, the path is as I mentioned earlier
The seat belt interlock has been bypassed on this car, and yes, my ignition wire is brown.