Hydraulic hook up

[warburtonplayer]

Hello I have a shibaura S700 it has hydraulics on it for the 3pt. My question is that I have seen other tractor where there is a hook up under the seat. My tractor has a large port where it looks like that would be where the hydraulics would hook up./ My question is where can I buy a prot to hook up into it so i can run other attatchments?