I know that the Crown Victoria have three models of sirens "internal lights, soffits and even taxi lights. I suppose that if the two models of lights come together there could be an error in the change of lights or cause weight in the FPSs. However, a developer could answer this. You can also use /polight on police cars if you like that more, but I don't recommend turning on the sirens + /polight Also, I would agree to some minor improvements to the Crown Victoria. ::: :::