Hi, interested with the HU for Nissan Livina. How much is it? Is it plug & play so no need to tamper with the factory wiring? Where is the USB input terminal btw cus I cannot see it in the front panel and the pictures are not clear enough.
Thanks.
Wonder, Wira 1.6 Auto. This engine did not have o2 sensor for close loop. When tunning, they only allow to adjust the VR,variable resistor ( Lean or Rich ). My question is, how the stock ecu know that the a/f in...