[Kevin Kuehn]

Bob,

The trim floats out past the outer edge of those retainers. So you can pull it forward with the putty knife at the end. At that point I was able to get a finger behind trim end and then move the putty knife closer to the first tab. You need to slowly work it off one tab at time, working inward from each end.

Pictures below show how the U trim hangs on the retainers. The bottom edge of the trim wraps around the back of the retainer, so I don't see how you could slip the bottom edge off first. The right picture is an upside down view of the bottom side.