Macmuffin

How could i do that? I poked around in the files and could not figure it out. Thats pretty much exactly what i want to do...Replace the airhorn with a different siren.

I have one more question. Is it possible to replace the air horn with another siren so you could have 4 stages and not 3 stages and an airhorn. I know that sounds stupid lol Also what about replacing the second airhorn on the fire truck. The one that comes on in the siren stages. Sorry if i sound confusing lol

I was looking at the airhorn mod the other day and could not figure out how to put my own sound in. Any idea how? Thanks!

Is there anyway to add a different siren to the firetruck while keeping the police sirens the same? Also is there a way to just change the air horn on police cars without changing the whole siren? Thanks!