Hey, after driving around in the firetruck I thought it could be fun with a car with a trailer. I don't care what car, just a normal road car and then with a trailer on. here's some pics: a trailer like this would be fun: https://www.sbltrailer.dk/files/images/trailer_images/hobby/Variant-502-D1.jpg...

Is there a way to make the firetruck have another siren sound while the police cars still have the same siren? How to do that?