For those owners of a 2017 chevy Silverado with the active grill shutters who want to install a siren speaker here is a pic of where it can fit. The shutters are easy to remove and the speaker can fit on the radiator cross bar. Some trimming of the plastic needs to be done on the lower shutter next to the speaker. Stay tuned for more pics of my install. Sorry for the sideways picture. I can't rotate it for some reason.