Haha. Onehundred80 answered me when I asked which fuse was protecting the siren. I didn't understand his succinct answer and when he explained it again I went out, pulled the cover and tested the fuse (#9) to make certain I wasn't spending $140+ when a 50 cent fuse would do. As for the last one on earth; just a little humor regarding the disappearing list of parts available. If you search for the siren as a mopar part you will run into the "no longer available" and "discontinued" price..