Allows owners of Nissan Navara and Terra to retain the use of the factory multi-functional steering wheel control buttons including phone & USB input. This harness also aids in the retention of the four factory reversing cameras, allowing for 360-degree camera functionality. The interface allows the aftermarket stereo to interpret and interact with the factory camera information as if it were the original system. It also allows for a choice of multiple languages. Please note: this product is for models where the camera display is built into the rear view mirror.