Hey Dezoris,
I am looking to either build a raspberry pi computer for my veloster or, if possible, edit the current OS.
I saw you have done quite a bit of research so correct me if I'm wrong, the OS is built into the ROM on the display -- BUT, is all of the software built into it as well? Is it possible to run any other type of interface without either hacking the rom or replacing the whole HU? Having to input the code etc on every reboot is tedious for a 10 min drive.
Also, if you need any help with skinning, I'm your man.