Interesting... My first "test" ringtone appears in the video...

Converting an mp3 file with Audacity as a wav, 16 bit, raw, unsigned, then change the extension from .wav to .PCM it's only a matter of trial and error. Honestly I can't even explain the procedure, as any time I've started to convert a file, I needed a few tries to obtain the right bitrate...
I've posted in the Italian Hyundai forum (
Tucson (modello 2015) | Forum Hyundai Club Italia) a few ringtones, and I'm happy to share them with you, too:
Dropbox - KMC_2.PCM
Dropbox - Suonerie PCM.zip
Enjoy