Trying to remove a crash-damaged fender from my G and I found two bolts that I couldn't remove without removing the side skirt. I found these two white pins that I could not figure out how to remove. I think that by removing those I could peel back the side skirt and access those two bolts on the fender. Does anyone know how to remove those?

Picture for reference:

 

Squeezing on the sides didn't allow you to push them through? Do they have screws in them? I'm not very familiar with the sedans.

 

FSM will have diagrams of all relevant clips with guidance on how to remove. Download from nicoclub.

 

I couldn't find what I was looking for in the factory service manuals. I'm hoping someone here knows.