Previous page Next page Previous page Next page Previous page AHD Reverse Camera When in gear, it will automatically display rear view image, help to park more safely and easily. Steering Wheel Control Easily adjust the volume, change tracks, and answer calls without taking your hands off the wheel. Next page 1 AHD Reverse Camera 2 Steering Wheel Control Does the head unit support jbl audio system ? If your car with JBL system, you need to purchase additional power cable. In addition, ordinary Toyota RAV4 cars are OK. What are the two blue wire for on the camera plug ? The blue wire is Bluetooth and WIFI signal booster cable.