I recently bought a Chinese head unit for my J10 (2008). It comes with a Nissan-specific adapter for most of the wires, but not the steering wheel control ones.
The head unit has KEY1, KEY2 and GND wires that I need to hook up manually. The manufacturer tells me that I don't need a separate dongle, just to connect these wires.
Any tips on what colour they are and where to find them?