Rally dash redo
OK, looking my diagram. Whether we call them park lamps or running lamps, the 67 harness has 2 separate circuits for them.
Front park lamps is the yellow w/blk on terminal 'P'. It's yellow w/blk outside of port 'U' and all the way to those 2 lamp fixtures.
Rear park lamps and lisense plate lamp are the black wire on switch terminal 'R'. It goes though port 2 of rear harness connector and stays black to those rear fixtures.
How/where front park lamps get power in the 68 model? I don't have those drawings. Looks like they are all on 'R' ( 68 has 2 wires on 'R' ). That would explain why 'P' isn't used on 68. All running lamps on same terminal and same color wire.
Next I go back and look at other wires on this headlight switch that you questioned.