How to replace the in-game music in Asphalt 8: Airborne?

I have been playing Asphalt 8: Airborne for quite a while now, and I would like to change the in-game music provided by Gameloft with my own copyright-free music.

However, I have searched the complete Asphalt 8: Airborne folder in Packages under AppData/Local for the music files, to no avail. Where are the music files are located? Any solution that’ll help me change that music is acceptable, because muting the music and playing your own on the music player is a terrible workaround.