thank you for your replyontheh6oo cdplayer on 2004 Kia Amanti

i went to the kia dealer here in nova scotia they told me there was a code that i would have to put in but they did not know it ? is that true .when i put the disk in the machine, on the dispay it say no disk in the machine, but ican put 6 disks in it say no disks.i thank you for your time but if there is anything else you can come with i would apprecitae it.russell

Asked by for the 2004 Kia Amanti
Should be on the unit itself.