Hey guys, I know this will only be a small percentage of people who want this due to my location, but thought id offer it anyway.   With a few pieces of paid software on my laptop some cables and some time in research, im now able to code any compatible Nissan key to the NATS/Immobiliser system on 350z DE vehicles.    The only caveat's are that I need the vehicle with me, theirs no way to program keys remotely as the key is paired with the NATS system directly in the vehicle.