Hey I’m running into the same issue and I also have cutom server sided sounds but the sirens for some reason still don’t seem to work with that. But I heard the only thing that works is GitHub - Walsheyy/WMServerSirens: Server Sided Sirens for FiveM. . These are server side sirens but you need to configure them to work with your ELS script. The tutorial they posted is installing it with [Release] Luxart Vehicle Control So I haven’t figured exactly how to get them to work with [Release] ELS FiveM | Server Sync | Lights | Sirens | Custom Patterns But I do know you need to edit the client.lua so I would start there. If I get it working I’ll be sure to post it here.