After being garaged for the first 11 years of its life, my 04 FX4 has been force to live outside. The result is the wheel opening moldings are fading which is not really a problem as a little adhesion promoter and paint can fix it. Removing the pins on the opening is not a problem The problem is how to remove what may be clips that hold the molding to the side of the fender without destroying the fender paint or the molding. Thanks!

 

Before pulling them or painting them, try some of this:

https://www.autogeek.net/black-wow-trim-restorer.html

 

Had great result with this as well: https://www.pepboys.com/product/details/9878075/00155

3M Bondo Restore Black - 8 oz.