The entire B-Pillar unibody section was filled with foam. Unfortunately, that included the gas cap door actuator.
Which, once removed looks like this.
Looks hopeless, but once I soaked it in acetone for a night, I easily brushed off the remainder.
Then, once installed with the cable and all, it was still not retracting all the way back and would only release the door if I did not screw on the collet that holds it in place.
This picture is supposed to show there is a depression built into the carpet, but the light is not good. I was trying to figure out if cutting a depression in the Luxury Liner Pro beneath it, would allow me to move the handle further and get the gas door to open.
Unfortunately I don't have a picture, but I cut out a large square. Still did not help.
This black cable had also been buried under the Rammat, so I cut it out. That started me figuring out what was really wrong. When I actuated the handle this cable moved back and forth.
See that rusty metal? That is supposed to be covered in plastic. And it's loose. when the cable moves in the sheath, this metal button opens up and makes the actuation not proper. Apparently I broke the plastic housing and the cable has been compromised.
I built a splint to test what would happen if the cable did not flop all around and split apart and come back together when trying to actuate the gas filler door. It worked perfectly.
So, I zip-tied the holy shit out of it, so the splint cannot move and now the gas door works perfectly. Otherwise, I'd need $64 worth of cable and an entire evening to replace it.