Hopefully you find this helpful, this should work for all cars but I did include (2019-2020) specific events as much as possible. The Veloster N never came with heated seats in America and this is the best way that I have found to implement them.
Very satisfied with how they turned out and they are VERY hot. The whole project took me 6-8 hours and costed ~$80. I don't have a link to the Amazon items I used because it's gone, but I think a lot of them are the same as long as you get the ones with the same switches as what I had used.
