When walking around the Diamond Casino at like 2 am, I notice that the restroom has music playing when you walk inside. That gave me a good idea.
I decided to make a small mod that replaces the song with two songs from Ezzzy 105 from Saints Row!
INSTALLATION: Pick whatever song you wish to have and place the .AWC in “mods/update/x64/dlcpacks/mpvinewood/dlc.rpf/x64/audio/sfx/dlc_vinewood”
After that, load in the game and teleport to the Diamond Casino (normal version not heist one) via a trainer (Simple Trainer for example)
The restroom is near the poker tables, just head in and you’ll hear the new song you picked, enjoy!