Many people outside the US,(including me) which own a GX 65 are waiting for a better european update... Hopefully sometime soon we get one...
Here is my suggestion:
Add AutoVolume depending on the current vehicle speed.
Improve K & Ka band response.
Ka bands in GX65 should segment to 4 Ka narrow bands for the best possible customization to the country where it is in use.
K Pulsed Band: 24.100-24.250 GHz should added.
KaN1: 33.900-34.200 GHz
KaN2: 34.200-34.400 GHz
KaN3: 34.600-34.800 GHz
KaN4: 35.400-35.600 GHz