I have some rapid fire kit for the xbox 360 wireless controller. They work with both revision of the board.
Each kit is $10 shipped ( kit include; Programmed pic chip + resistor + diagram).
Also i do have used Wireless controller that are predmodded with my kit.
Asking price is $60 shipped anywhere in the USA.
The rapid fire is activated though the sync button on the controller.
Please to contact me, write to: swmodder at g@m@a@i@l dot com.