GPS Navigation stopped working

My GPS Navigation stopped flipping up and also stopped showing the screen, Its not necessarily a vital organ for my 2006 BMW x3, but its a pretty important one considering it also hosts the radio and everything else. I'm not sure if its just a wire being undone in the back or if its the actual motor in the Navigation system. We checked the fuses which are fine. Is there a way to remove the GPS System so I can check the wiring to it? Any advice is very much appreciated.