No headlights?

So after a long week of working on the car to get it down to the mopar nats, I happen to notice that I lost my headlights when I pull the switch on. All the other lights come on. Including tail lights. Is there a plug or something up under the dash I may have bumped? I checked the fuses and all was good there. havent done a major wire trace or located a headlight relay yet. Thought someone else may have encountered this before I spend hours diagnosing this. 1974 dart.

Thanks all.