They have multiple connectors on them as opposed to the sticks that are already in there which have just one connector on them. Additionally, the sanwas have mounting screw holes in different places than the ones in the cab.
Thanks for your reply. Also, do you know how to install wires into the harness? I have a harness running from my mvs 4-slot to the jamma without a left speaker wire in it for stereo sound or a select button. The sound is atrocious!
The controls in your cab are most likelly seimitsu joysticks which have a bigger mounting surface than sanwas do. If you want to use the sanwas, you'll have to drill some new holes. Otherwise, buy some replacement seimitsus.
I got a step drill & made the holes larger and put happ competition sticks I got from therealbobroberts.com. Works great, I even replaced the buttons with happ comp buttons as well.