I don't know where you live but if your in the usa try loging onto kiatechinfo and register it's free in the usa for service info
http://www.kiatechinfo.com/. is there no way to get the broken part of the key out get creative if you can? I never removed the ign switch from my 02 rio but i did have one broke of in the door and a couple of jewlers screwdrivers an a small paper clip got it out. anyhow my kia service book says to remove the steering wheel and then remove the plastic housing to get at the key switch and tumbler to remove it. Good luck with it. Reguard's ronjohn