Things You'll Need
Instructions
Remove the PlayStation 2 controller from the PS2 gaming port.
Plug the PS2 end of the adapter into the open PS2 port.
Attach the USB cable running from the PlayStation 3 controller. Although the PS3 controller is bluetooth ready you need to leave the cable plugged into the controller. The PS2 does not support bluetooth wireless controllers.
Power on the PlayStation 2 and begin playing any of your games with the USB controller.