My Sierra III does not have an "X4" and I need to substitute some other designator/Name for X4 Ku which is on the Dual Band G6(also called G4). I have G4
Keith: I managed - somehow! - to do an AF32 which allowed me to UNLOCK the Audio Tuning screen - the first screen mentioned in the Owners Manual that comes up
You might have to do a RESET I recall on my Sierra 2plus I had to do a AF94, Sat button and then the Store button within 5 seconds Good Luck Keith ... When ...