I purchased the GTN 750 product, and ran the installer as per the instructions. To install the guage into an airplane, the instructions say to find the installer in "my documents/Prepar 3D verx addons.  Ther is nothing there in that folder.  Also, I don't have Prepar 3D, I have FS-X.  The guage file appears in my guages folder in FSX, but I have no idea how to get it to work in the airplane that I want to use it in. Please help.

Do you have in FSX when load flight, addons window (upper where you have option for views etc) and there submenu RXP GTN ?

 

Check this:

 

Edited March 26, 20251 yr by Doksas