Ok, so I have spent quite some time searching and searching. I am looking add cruise to my wife's 07 Versa S HB. We have all the power options, keyless entry, power windows. I really don't want to go the aftermarket route with the rostra kit 250-1855. I would like to make it OEM. I know I need the steering wheel controls, brake switch and most likely get the ECU programed. But my question is what wiring do I have to look for to see if my car is pre-wired for cruise? I am not against taking the steering wheel apart or the column behind it, but I don't know what to look for. Can anyone point me in the right direction please?