I have the same issue, and after quite a bit of searching, came up with this part. I haven't bought it yet, but I'm pretty sure that it is the correct piece. It states that its the metallic titanium that is on the S.
Pelican Parts - Product Information: OEM-986541541029A4
As far as your trim being loose, I had that to. Found that pushing it firmly toward the glass with reseat the channel in the trim and keep it firmly in place. Mine was loose all around and would vibrate quite a bit in the wind until I reseated it.