Auxiliary fel post driver

[FF110]

I have a shave hd8 post driver that I want to convert from a 3pt hitch to a quick attach style mount. My question is about the hydraulics. I planning on using it on a jd 110 tlb with the flat face aux hook ups on the fel. Is it possible to operated the post driver off these hydraulics and if so how do I hook it up. My post driver valve has 1 inlet hose and a return hose that goes straight back in the hyd tank. I will run the return hose back to the tank but do I need to add a power beyond plug to the post driver valve and have 2 lines running to the aux hookups on the fel or will the 1 be ok. I'm not sure if it needs both lines to make a complete circuit. Also as you can probably gather I have a lot to learn about hydraulics so any I'm put is appreciated. And I'm pretty sure that my post driver has a prince valve on it. Thanks.