Seastar duel controls with an auto pilot pump somewheres

[ptclabs.jp]

I have seastar upper and lowers in my boat. I want to add an autopilot to it but I am have problems finding what to do with the compensating line between the upper and lower. Common sense would just tell me run in and out as normal and split the compensating llne as the return and call it good. Its all their vinal tubing so I would have to figure out how to adapt everything, but adapting is what we do on boats in the first place anyways. I looked online for a while, I have found where people have made diagrams for "adding a second help or auto pilot", but not really a third as that is really what it is. I need some advice and thank you all.