I would like to get a signal that could power a relay when my sling is in reverse. It's a 2016, and I'd like to get that signal so that it will feed my aftermarket stereo with backup camera to switch the display to the back up camera automatically when i put it in reverse.
I am not sure if there is an analog signal (voltage) available, or do i have to pick it off the CAN BUS or does a signal like that not even exist at all?
Thanks in advance,
Dave
