It would probably be in the vechicles.meta file, but honestly i could be wrong. at: ...\Grand Theft Auto V\common.rpf\data\levels\gta5 you'll find the original vehicles.meta that came with the game, and if you do "Ctrl + F" and type "sheriff" it'll bring you to the section you are looking for. I have no idea if you can change the audio only from here, but you can change which handling the vehicle uses and other options. This would be a good place to start. if you do find a section that allows you to edit which audio file the vehicle uses copy paste the section for "sheriff" only and paste it in the vehicles.meta file here after the "<InitDatas>" tag: ...\Grand Theft Auto V\mods\update\x64\dlcpacks\mpluxe2\dlc.rpf\common\data\levels\gta5 This is what i would do, but i am no expert.