- GM has a TSB on this problem. Take it to your dealer and they will fix.
Easy, less board equals less cost. Put only the amount of board in the unit that you need. Always been this way for most electronics.
I bet the RFID is for sales, not manufacturing. Amazon will read the ID when it's boxed for shipping and tie it to the owner. That way once you receive the unit and connect it to the net, it will phone home and ask who it's owner is. Then download the appropriate account settings.