B2150 rear remote ?

[mcd176]

I am wanting to add rear remotes to my B2150, I am "building" the system because I know I can do it cheaper than factory remotes, I understand how to do everything except where do I tap into for the hyd flow there is a block on the right side that has hyd lines going into it and is capped off, im assuming that is where i need to tap into, anyone with pictures or diagrams I would appreciate it.

Mike