Just a small suggestion. I already like how some lightbars have different modes, like chase, scene, pass left, and pass right. But about the siren: What if some sirens were given a acceleration/speedup/bullhorn mode? What I mean is this: You drive with lights and sirens on to an emergency, and you come to a busy intersection, you press and hold the siren button and the siren is played like 2 times as fast, to let people know you're coming through. So the siren button will have 3 normal function: Off, lights only, and siren and lights. But when you HOLD DOWN the siren button for more than 1 second, it could make a alternate/fast/bullhorn siren sound. Please take a listen to understand what I mean:
