Standardized production? the heater in the seat is standardized. There is no more standardizing needing to be done. The heater already exists the switches already installed. All you are doing is adding a switch for the company to say no you can't use the heater. You are not updating heater software after it is sold.

Also this profit argument is not even correct. It is like you install a door with a key lock and you have to pay subscription to use the door. It is not seeing any updates etc. This is just double dipping on a product that has already been delivered.