the 4 wire.red for ignition +12v,orange for +12v battery,black for grounding and white for tacho input. The 2 wire socket for shifting light.Becoz it using led type be sure you connect this 2 wire correctly.Otherwise it won't light....
sorry for the mistake.......
My sister's kancil 850 auto, rpm during idling is roughly around 2k without turning on the a/c yet.. i think it is high right? So i'm going crazy to tuning it down n manage to get 1k, i did it but it mess up...