I have a 2019 GT2 and I have been using my IPOD Classic 6th and 7th generation using a 30 pin connector in my Stinger and it works just fine. It displays the album art as it is on my IPOD. I load everything on my IPOD in ALAC (Lossless) to get CD quality and one HUGE advantage an IPOD (or IPOD Touch, Iphone) has over the use of a USB stick is that it has gapless playback when the original album was mastered in that way. Listening to an album that was meant to flow gaplessly with 1-2 seconds gaps is very jarring IMHO. This is especially true with live albums. Think Pink Floyd WYWH, The Beatles Abbey Road, The Cars and many other titles. Obviously, KIA may have changed what the head unit will play....