I have a wireless Xbox 1 controller that's still in decent condition.
I have an old USB extension that I have cut a notch out for in the reciever, and stripped the wires for soldering.
All I need now is the pinout for the plug, so I can solder the USB cord.
PS: I've got it set up so, that if we ever decide to get another X1, we can still use it.
If you need pix, I'd be willing to get them.