Interesting idea, but i'm not sure how practical it is, especially since it's FM only. Won't affect you if you're listening to CDs, mp3s, etc. I think the bigg

Interesting idea, but i'm not sure how practical it is, especially since it's FM only. Won't affect you if you're listening to CDs, mp3s, etc. I think the biggest problem emergency vehicles face is people talking on mobile phones and not paying attention to their mirrors.