I can't find anything in the manual on how to enter map co-ordinates into the unit and even playing around with the Nav Unit I can't see how to do it...anyone help?
Someone posted this a long time ago so I hope I'm right. Create a Waypoint by using the touch screen to select a point on the map. Hold down the page/mark button for a couple of seconds. Give the newly created waypoint whatever name you want and manually edit the LAT and LONG to give the location you want. OK these and the location will be saved in your waypoints under the find menu. Easyer to do in mapsource mind.
And if you are doing it in mapsource using an OS gride ref. Change the Grid under Preferences/position to British national grid, from WGS 84 which is the default setting.