If they stayed with the manufacturer that they used before the new gen sportage, then it's alpine. I have a 2k sportage and the cd changer is alpine. HOWEVER!!!
When i found out that it was an alpine, I thought to myself that I'd get an alpine head unit and be able to use the two in conjunction with each other. All well and good right? Well it turns out that Kia used a different cable and adaptors so I had to buy a new ainet cable. No big deal but I had to purchase the cable directly through alpine.