I bought the Autel sensors online. I have a TPMS programming tool so I can do my own sensor sync. Otherwise, take the wheels/tires/sensors to just about any tire shop and they'll install the sensors and program them to the car.
My Autel sensors now have the same ID as the OEM Nissan sensors. So when I switch back to the original tires/wheels/sensors that came with the car there is no programming needed unless the car doesn't pick up the new positions of the tire/wheel/sensor.