Originally posted by chaosteam13mods
so i found out a small little glitch
spawn a police cruiser (or any policecar)
drive into water (not too deep just so that it kills the engine)
after the radio and lights turned off boost your car out of the water if u are on land (dont teleport on land) wait till the engine turns back on and turn on the emergency lights
(double press horn Left stick) there u go emergency lights without sounds
it maybe works without mods but then u need to find a way out of the water somehow)