[incommunicado]

Well, I think I figured it out. During the treatment at the body shop my core support was replaced and I believe it was not from a GP. It appears that the GP core had a cut out for the turn signal socket/ bulb access and my replacement does not.

I eventually found the small plastic covers that go in the corners where the fender bolts to the core support. I ended up cutting out a small area that is hidden by the plastic cover(s).