You can remedy that in which you simply glued with hot glue or the like, the edges, then it will not budge. The installation of the radio brings by the weight of pure stability. Currently, I've been using it without glue, the possibility I see, however, and let me open.
The quality is otherwise so far during installation is not canceled, the plastic does not smell and striking the subject is really an asset!
For that it is advertised specifically for Ford, but does not fit easily, unfortunately only 3 stars. So far I have but can not find anything else.