I had the same problem about a year or so ago. The guy at the glass place knows what a fanatic I am, and called when the new trim piece arrived in black. I had them use the old piece.
Later I called 4 dealers they all told me the same thing, "it comes black and fades out". I gave up, and hope I never have to replace it, find it hard to believe all the trim on the car fades at the same rate, to evenly matched color. Just my 2 cents. Good luck.
Just sold em all !! Curently driving a, 06.5 VW GTI
Euro Lights w/wipers, Clear corners, 17" Monoblocks, K&N Airfilter, Sportline Suspension, Custom SS single muffler exhaust
96' Harley Davidson, XLH 1200