Trimble GFX-750 sees the steer angle by these 2 wires - it’s somehow visible in CAN
The only problem is I have to touch the screen to activate autosteer. There is no tractor button, there is no possibility to attach foot-pedal to activate autosteer.
My Kubota was the first one in Poland that external (no Kubota’s) autosteer was enabled. I had a visit of the main Kubota’s service man, and the owner of the Vantage in Poland. Those guys spent 4 hours in the tractor cab to integrate those 2 systems. They did not tell me what was wrong, but In my opinion there was some error in instruction how to enable autosteer in tractor.
After this meeting everything works fine (for 3.5 years)