So I got my first siren today completely by random. A very stripped crown vic at the local LKQ junkyard had a Federal Signal AS-124 100W speaker on it. I connected it directly to my Nokia 7.1 and it did work but very quietly. However, the Vic was completely stripped inside and had all of the wires chopped. I couldn't find an amplifier or a microphone. It also must have been an undercover car, as it had no lights save for the manual spotlight. The yard had no idea what to price it at. I offered $10. $10 later and I had a Federal Signal.
My question is what controller/ amplifier system would be designed to go with this thing? Also, Would any 12V auto amplifier work or would it blow up?