If indeed the 69 switch is different, I don't believe that you would have front markers at all. 69s didn't have sidemarker lights, they had reflectors.

I would say something is definetly crossed.



The yellow wire is the power feed to the park circut of the park/directional lights. The dark green is the feed to the side markers. The rectangle to the right is the head light harness bulkhead connector. I would start by visually looking at the connector and make sure that they yellow and green wires are going to their correct spaces.

If they are. Follow the yellow wire and make sure that it does go to the one of parklamp connectors.

If they both are are correct you'll need to pull off the bulkhead connector, and either use test light or voltmeter and check the operation there. If it continues it definitly in the headlight switch/or dash harness. hope this helps.