Not a lot of incidence, thank Kia. But, that doesn't help you. The first thing to try is lubricating the door seals. Various applications of "felt" tape have worked too. If it isn't a door seal cause, then it is more buried, i.e. something rubbing inside the door panel or even the headliner over there. One incident (or possibly two, it's been a while back) had a misaligned door. Once the door was aligned properly the noise went away.