Sorry to bump an older thread but..................
I am wondering if this has been done yet.
I have a 2013 with the factory Homelink mirror - backup camera option. If I upgrade the HU (thinking of the Kenwood DDX419) it would be nice to send a video signal to it as well. Nissan has done the majority of the work for me already
, I just need to find the video feed and splice into it to send to the HU too.