Curious if your window ans a pillar trim (triangle by mirrors is faded and how to fix it and a pillar window and a

 

Mother's Back to Black works great on black rubber trim. You rub it in and it conditions and removes the oxidation. Be careful on the triangles behind the mirrors though, you can actually rub it enough that it will take the texture off which I found out.

 

Armor All Ultra Shine for the win! Lasts after one wash also.