No Park lights (help)

K.O. SWINGER said

All ground wires seem to be connected on the front harness.

That was one of my first test no power to the bulb. I do have brake lights but no rear fender markers side markers or Park lights, I seem to have power out of the bulkhead and out of the switch to too, I know I'm missing something

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What year is this?

What have you probed? Once you have power at the bulkhead, the rest is a fairly simple harness. The park and markers are supplied by ONE wire and ground. The socket grounding is a very likely problem. Turn on the markers. Make yourself a long "alligator clip" wire and you should make one, anyway, "for the future" that will reach the car front to back. This can be a small wire, no20 or larger. Ground this "for sure" on the battery or engine block. Hook that to your test lamp or voltmeter and then with the park lights turned on, jab the other probe onto the socket shell hard. If you get a reading or light, the socket is ungrounded.

I tried to explain earlier, if you "think" you have power at the bulkhead, and you checked this with NO load, it could be a problem right there in/ at the bulkhead. When the lights are connected, they could "drop" the bad connection in the bulkhead.