Hey guys when the navigation is turned on the position cursor is always in the same spot and will not move. Checked antenna and cables. All appears ok. Rest system and same result. Any clues?

Have you looked at the GPS settings to check you are receiving signals from the satellites?

From the main menu go to settings, nav settings and then GPS, you should see signal strength and the number of satellites being received, if not then you could have problem with the antenna. make sure it has no metal sheiding it from the satellites.

Hope this helps

Mark.