HUGE palm-to-forehead!! Problem solved with your help.

Don't know how I could have missed it. Kind of like looking for snakes. "Borrowed" the relay switch to put in my '79 264 to rule out a suspected faulty one there. Since the wagon was parked never got around to putting it back in the engine compartment. Had it sitting behind the drivers seat on the floor. All is well for the lights.

Now onto another issue, the wipers.