Siren Pack 1.40 American Truck Simulator Sound Mod

For all your urgent delivery needs. Obviously, this is just a thinly veiled airhorn pack, the sirens don’t have any functions outside of that. The pack currently contains 18 siren tones from 5 sirens.
General SpeedTech Tones:
✔ Horn A
✔ Horn B
✔ Wail
✔ Mech
✔ Yelp
✔ Sting
✔ Hi-Lo
✔ Tool
Federal Signal PA650:
Horn
Federal Signal PA300:
Horn
Wind Down
Yelp
Hilo
Federal Signal MS4000:
Horn
Manual
Yelp
Priority
Compatibility: ATS 1.40
Problems? Let us know in the comments! Your feedback helps modders improve the mod. Also, be sure to check the comments section - other players may have already shared solutions to common issues.
cant get it to make any sounds. how exactly does this work? what all needs to be done to make it work?