Honda CRV how to retain factory reverse camera and hidden settings on android radio 

2013 Honda CRV, Get a test light with bulb and connect one side to ground another side to the wire on back of the monitor, if you touch the video side of the reverse camera, the screen will either go out or scrambled, we only used one wire and they all worked fine without the ground side.
the canbus module must be installed on all Android radio to make steering wheel control, reverse signal as well as car information
most module use 8888 or 1234 as code to get in settings
reverse camera must set as ntsc
test light www.harborfrei...
module a.co/d/0azwXUPi