[Got my Flirc Receiver today]

Got my Flirc Receiver today  but no instructions! My system is a Nvidia Shield TV and I was told my Nvidia that a Direct TV Remote RC65X would be compatible with the Shield. I have pluged in the Flirc to the Shield now what? Have no idea what to do next? I thought maybe a code would appear on the screen and I would input that some wear very confusing!!!!

Please help!

[Does Flirc work on Nvidia Shield TV]

If this will work anybody have any mapping layout?  

 

Thanks