Calibrate reversing camera

[Bunter1189]

Hi, I’ve fitted an Xtrons android head to my 2014 UK Ford Focus, together with reversing camera. Everything works perfectly, but I have absolutely no idea how to calibrate the camera and I can’t find anywhere on the internet to explain what I need to do. Can anyone assist with that? Also, there is a setting on the reverse came which says ‘Show track line’ but it doesn’t matter whether it’s set to on or off, because it does nothing at all. Should this setting show the curved line that the vehicle will take with the current amount of steering applied? Also, there is another setting called ‘Show park line’ which switches a yellow grid on and off, but I’m not sure what that’s for. Any help will be much appreciated. Thanks.

[xtrons]

We would need a model of the radio, and model of the camera you have