AUTOCREDIT: Thanks to Me5 for the OG. Don't remember where the audio came from. Down in Metroberg County is Emerson, ST. About the size of Ankeny, IA, about the same system size of Ankeny, and has the same sirens. I decided I'd hit up this 2T22, mounted the same way as Ankeny. This is Ear Killer 2.0(1.0 is located at DMACC in Ankeny, IA at Building 11). The click you heard was the timer clicking before the siren wound up. I also met up with another enthusiast. which was fun.
Probably easy to guess who made this siren(@conpatch, who is sadly no longer on scratch)