I couldn't pull it off by pushing on it or pulling on it, but I ran a ziptie around the mount just in case.
Alrighty then.
How did you run the coax and what did you do with the slack?
FYI, if you don't know...It doesn't like to be coiled.
As a suggestion, you might try one of those little stick on circular pieces you get with the magnetic cell phone dash mounts and maybe put it there by the mp3 player or in that area.