I looked into this as we're buying a '16. As near as I can tell it's included with a software update from a partner company to Kia. MapNSoft.com is where you go to get it. In theory if you download it online, it's free. If you order it as physical media it's $25US. According to features update,https://storage.googleapis.com/mapcare_ ... res_S4.pdf
, Apple CarPlay was added in version 10.5. The latest version, version 14, was released yesterday and should be available for download May 15th. We'll see. Finding the download site doesn't appear to be straightforward. It might turn out to be easier to just buy the media.