If you don't have rear remotes, where are you plugging in for the hydraulics? Do you have FEL? How many outlets do you want for the rear remotes. Basically, you interrupt the hyd flow from the pump to the 3pt and add your new valve in series with the 3pt.
Possible combinations in correct order . No FEL, pump, new valve with PB and relief, 3pt. With FEL, pump, FEL, new valve with PB and relief, 3pt. All returns go to tank.
I'm really confused. :confused2: What is it that you are doing that you are undoing hoses when you change implements? How many remote valves do you need or want?