My PS3 Madcatz SF4 fightstick has no button or joystick response

I just busted out my Madcatz SF4 fightstick to play and connected it to my PC. The PC reconizes the stick but when I go into controller settings, I see none of the inputs on either buttons or joystick are responding. No lights are turned on either. This stick’s only mod was to replace the joystick and buttons with arcade sanwa parts. Any ideas what could be wrong?

Want to know why?