As my TCH will be born in KY, I was wondering about the 'Port ' installed options. Are they just added on the assembly line?

I have seen other threads about port options, but still do not understand where they really are added, Japan, Stateside at or near the port, or at the dealership?

Anyone know the real story?

They are all added by Elves at the North Pole so it makes no difference if the car is assembled in Japan or stateside. Hope this helps.