Do it the easiest way possible if all you want is to run the splitter. Get some long hoses and a couple of male quick connects that fit your loader QCs. Just make sure you get the right fittings. They are not 1/2" like the rear remotes. Next, disconnect the FEL arm raise/lower QCs and hook up your log splitter. Push the joystick forward to float and it will stay in the detent, providing a continuous flow to your splitter so you can use the splitter's valve to control the splitting ram. It will work just fine that way. If you want to be sure the joystick doesn't jump out of float, use a bungee to hold it forward. Of course, if your splitter works backwards, just swap your hoses at the QCs. PIECE OF CAKE!
I thought you wanted a rear remote. Since you don't, you don't have to buy anything much to make it work very well.:thumbsup:
EDIT: You will need to set your 3PH prior to powering the splitter. Once you push that joystick forward, you will have no flow to your 3PH. Of course, if you want to get fancy, just put the splitter on a stack of pallets and don't use the 3PH at all.