If you don't like the shiny metal look, you may want to choose some paint to match your phone holder or dash color. I had some flat black spray paint around, so I used that.
Note: You may want to paint the adapter after you have the suction cup in place and use a glossy paint rather than flat. I found that the suction cup did not want to seal over the mat paint. I also found the paint can crack or chip when you are bending the triangular tabs into place.
You will see in a later step that I had to add some adhesive to get a good seal and touch up the chipped paint in some areas.