Cheap Wii classic controller - can't interface with arduino

Hi,
I've bought a cheap wii classic controller from China, I've tried several wii classic controller libraries and examples, but none seem to work (no serial output whatsoever), I've also wired each example with all the possible configurations on A2,3,4,5 (before trying the obvious one, but my multimeter said that of the total 5 wires, there are only 3 unique ones, I've cut the wii connector to expose the bare wires). Then I decided to open the wii classic controller and see why it won't comunicate, when I opened it I found two wires connected to VCC, one to SDA and another two to GND, I was quite surprised by the fact that there is no SCL, is there any way to interface this wii classic with the arduino?

Anyone?