Massey 6614

Hey everyone, i have a Massey 6614 that is autosteer ready. Just wondering if anyone has put an AGO gps in one of these and could save me a bunch of research.
Just wondering if there is a plug i can go to in the cab to get the hyd. valve hooked up or is it easier to make a new harness directly to the valve.
Also if its autosteer ready is there a WAS installed somewhere or do i have to add that to it?
I got my system running good for what i need it for but have not done a system with the hyd valve.

Any help is greatly appricaited.