txt file, copy-paste the following into it and change the file extension to. I DONT TAKE ANY RESPONSABILITY IF YOU HAVE TO REINSTALL THE GAME IN ORDER TO GET IT WORKING AGAIN AND I DONT KNOW IF YOU CAN GET BANNED FOR THIS ( i highly doubt it, but you never know) Update 2: Post edit in March 2021, i found out you only have to delete the Radio3.bank file and nothing else. Update: If you update the game it will restore the file, just delete it again. You can backup this file and restore it (put it back in its original path) if you want to get it back (i did not test this but it should work). Note: This will completely remove all Radio sound and the cutscenes Music.

Inside the 'X64' Folder delete the 'Radio3D.bank' file Inside the 'WindowsApps' folder go to: >Microsoft.SunriseBaseGame (This folder should be around 75GB big) > Media > Audio > FmodOpus > X64 (you may have to give yourself admin permisson to open this folder, there are plenty of tutorials online) Go to the location where the game is installed (maybe you have to turn on show hidden files in your windows explorer to see the 'WindowsApps' folder) So i have found a way to completly turn off the music, even the annoying music in cutscenes (menus).

Forza horizon 4 soundtrack