Since it took me a while to figure it out, I will post the solution here in the hope that it may save someone else some time and aggravation.
The trim pops off readily enough, but it does not pop back on. You have to remove the clips from the door. These clips also hold the exterior side fuzzy. As you lever off the clips (with something under the tool to prevent marring the paint) the fuzzy comes off attached to the clips. The trim side of the clips (barbed) can now be worked into the channel on the back side of the trim. The entire assembly; trim, clips and fuzzy can be be forced down into the "lip" at the top of the door to finish the installation.
Gus