If you mean how to remove it without damaging it, I would try a razor blade or a cuple of sharpened putty knives, inserted between the trim and the dash. It is probably glued on.
Semibodacious Transmogrifications a Specialty
1990 300D 2.5 Turbo sedan 171K (Rudolf)
1985 300D Turbo TD Wagon 219K (Remuda)
"Time flies like and arrow, yet fruit flies like a banana"