Alfa Romeo 156 2.0 JTS has resistive steering wheel remote controls. It can be connected directly to CarPC JoyCon EX. The resistance value is: RC-A: Mute : 390 Vol Up : 170 Vol Down : 70 RC-B: SRC : 391 Forward : 171 Backward :71 Left and right resistance value is duplicated, so a resistor is needed to avoid duplication. If you