[CPJex]Toyota Yaris Car Wiring - 01508 Toyota Yaris has resistive steering wheel controls. It can be connected directly to CarPC JoyCon EX. 6 -> GND(Black) wire of CarPC JoyCon EX 7 -> Channel A DATA(White) wire of CarPC JoyCon EX 8 -> Channel B DATA(White) wire of CarPC JoyCon EX