I read Doug's post and the hole is empty and taped over as he said. Confirmed this by moving the open door light into the empty hole and sure enough it the oil symbol was there.

I was hoping the wire would be present and I could just run a bulb and tape it in. but according to the wiring diagram there is only one wire (yellow) so it looks like I will have to run the wire (yellow) from the gauge to the instrument cluster.

the Blue/White wire seems to be the power steering pressure indicator according to my diagram, which I didn't know there was such a thing.