snipezy

So i installed this police crown victoria into my lspdfr and it replaced the normal police cruiser (the one that has no sirens) with my crown victoria, and now i can only honk and i can't turn on my sirens unless i use ELS, but the problem is that whenever i use it, the sound of the sirens doesn't work, like it only flashes but no sound unless i hold the R key down but that is really annoying to do. any ideas on how to add sirens to the normal police cruiser, or a fix at least?