something that i have noticed though, is that a lot of times hyundai will have all the wiring right there, they just wont have the component for it. like i know for the gk leather seats, the wiring goes stright to a dummy switch. all you need is the heated seat switch and appropriate seats, and you have heated seats.
i know what you are talking about with the country specific features though. europe gets a electronically controlled headlight aiming system on their rd tibs. we, get a change holder in place of the switch.