I've read all the threads here about backup cameras and the fact that the '10 nav is different from the '09 and there are no good solutions for the '10s at this point. One user did get a Japanese model camera working but he had it professionally installed and doesn't seem to have any info on how the camera was wired into the nav(
Factory Back up camera).
Toc2rta posted the AV portion of the '10 factory service manual (
Nav/Dvd hack for 2010) so I downloaded it and spent last night looking through it. There is a way to put the nav unit in diagnostic mode. Once there it is possible to turn on an option for a backup camera. The reverse gear sensor is also already wired to the nav unit so it seems to me all that we need to know is which pin you should connect the video signal from the camera too. Unfortunately the manual doesn't mention a pin for that.
Do we have any information on what other Nissan or Infiniti models use the same nav unit as the '10 Zs? I'm sure they use the same unit in something else that comes with a factory camera. If so, we could look at the FSM for that model and it would tell us what pin to connect the camera too.