How do I turn off annoying sounds during Fortune Island races?

I’ve got SFX volume set to 1. Radio volume to 1. Voice Over volume to 1. Radio DJ to OFF. Microphone and Streamer mode to OFF.

There’s still a ton of VERY annoying background garbage (cheers, songs, etc) coming through in the background when I’m racing.

How do I turn all these excess audio crap OFF ? All I want is to hear my car and the cars around me.

Thanks in advance!