Installing Navigator FREE on Windows CE 6.0 OEM in Kia

Hello, I've been trying to install Navigator FREE with compatible maps on my Kia factory built OEM which is running on Windows CE 6.0 build 2217. Unfortunately, after preparing everything with the installer and creating files (pocket version) on my pendrive and trying to run it on the device, it returns an error "application not compatible with Windows CE". Any ideas on what could be wrong/what I could be doing wrong?

Any response appreciated.