Hi guys,
Is there anyone here use NavTool (www.navtool.com) CarPlay device with the original LCD screen ?

I had a 2010 XJL with the original screen (by Bosch). 2 years ago I bought a CarPlay devive from NavTool, but when it arrived my car was sold.
Now I have a 2011 XJL with the same screen. I have installed the CarPlay unit. My iPhone connects and shows the CarPlay works but the screen of the car shows the original navi map.
How can I activate the NavTool unit and/or switch from the origi navi to CarPlay screen? Or If there is a Installation / user manual, that would be helpful.
Thenks... Gab