Been having a bit of a strange problem withy the nav unit of late, it tends to lock up although the radio or cd (whichever is being used) still works, you just cannot do anything on the screen. Then..... The next time I start the car, the complete setup has changed;
From this;
![Image](http://img.tapatalk.com/d/14/06/28/uva7ytaz.jpg)
(Ignore the dust lol)
To this;
![Image](http://img.tapatalk.com/d/14/06/28/amatu3at.jpg)
And the navigation menu disappears.
Any ideas?