OK, in that case it's a little more involved, but still simple enough!
You will need to rmove the centre dash panel which houses audio, stoarge pocaket and the 4 switches.
To remove it, puts your hands in the storage pocket, press down and grip, and pull, it will then unclip, all clips so don't panic!
Unclip the switches, they are all unique fitting, so you won;t get them mixed up!
there will be a metal cage screwed in, test see if your stereo will lock into place in it, if it will, plug it in, and replace panel!
If not, remove the metal cage with 4 screws, throw in bin!
Now fit your standard DIN audio cage to the switch/console panel, fold as many tabs over as possible to secure it, then your good as done!
One item you will need from your dealer, is the KIA loom to ISO connector loom, this just plugs inbetween stereo and kia loom, job done.