Did you get the washer fluid nozle hoses figured out? I see the nozle on the camera aplique, but not sure where the hose would connect into the rear wiper washer hose?
You likely would have to cut the washer hose, install a T fitting, and extend the hose to the camera nozzle.
I have this feature, and it activates w/ the Rear Window Washer (albeit about a 1s delay from the washer squirting fluid on the rear window, presumably has to fill more hose with fluid before it is expelled at the camera nozzle).
P.S. It is winter here in MN now, and this camera washer is a nice feature to have..