It's two things, a sunglass clip and a "multipurpose" clip. You can attach either to the passenger side sunvisor.
FYI, it's in the owners manual....
I've popped the storage compartment open with my elbow a few times, but once I stuck a dedicated ipod in there I locked it and it's not been a...
It doesn't bother me, but my 'stang is black so you have to look close to see that it's not painted to match the car.
Went shopping this morning, came home with this: