Well while waiting for some more materials for the hydraulic QA coupler build I'm working on for my MX series tractor I decided to make a control so I could raise and lower the 3pt arms from behind the cab. It worked out pretty well and I didn't get to many parts involved. below are some pictures of the stuff I used. Parts were a rubber grommet, a couple 1/4x28 jam nuts, a cut down 50 cal aluminum cleaning rod and a rod end joint I got off of eBay. I just drilled a 1/4" hole in the control handle inside the cab for it.
I got this on eBay - "RH 1/4"-28 Thread x 1/4-28" Stud w/ Jam Nut, Heim Joints, Rod End (CMRS-4)"
And I used a black powder aluminum t-handle cleaning for the control. pics below.
It's centered between the rear remote controls and works really smooth - I like it and now if I have to tweak it up or down a little when I'm back there I can and see exactly where the arms are.
I can't wait till I get the rest of the stuff for my hydraulic operated quick attach coupler.