XBOX Classic Padhack on 3rd party Controller without common ground?


Hi to all,

i only have a Gamestop 3rd party XBOX Controller here… Sadly it has no common ground for Dpad AND the buttons. Is is anyway possible to hack this controller?
I would love to put a DB15 male connector on it, so i can use my Neo Geo Stick. I won’t sacrifice the controller. Is there a way to use NG Stick without
stopping the XBOX Controller from working?

sorry for maybe bad english and thanks a lot