I know that ELS V7 has that feature, but it causes my game to crash and I don't really like the siren controls in V7, so I use V6 and I have tried several scripts such as: '?do=embed' frameborder='0' data-embedContent>> and http://www.gtagarage.com/mods/show.php?id=22038

 

But the "Airhorn Mod" is the default horn and the "Siren Control Tool" is confusing as hell, so does anyone know if there is a script that lets me only sound the air horn and still move traffic?

 

 

Also, is it possible to keep the default siren system and also keep the lighting system in ELS V6?

I think in airhorn mod, you can add your own airhorn sound. I remember I used a custom sound for that. The only problem with that is that it's not synced in MP. What's great about it is that you can have actual siren tones on the default airhorn, and then use the mod to use the airhorn.