A2A C182 Skylane - Flight1 GTN 750 not working

[Avion747]

Hi everybody,
Yesterday and went in the C182 configurator and changed the default gps to the Flight 1 GTN 750. When I open P3D V4 and turn the C182 fully on, the gps screen remains totally black. I cant find an on/off switch on it to try and turning it on manually. Please if you have any ideas, help me out here. Thank you very much for any help. I forgot to tell you that any gps 3rd party is not working except the default.

Avion747
-A happy A2A customer.

[Lewis - A2A]

Hello,

first up is to ask if you own the Flight1 750 GTN GPS?

thanks,
Lewis - A2A