I second that

Trythis one. https://www.raneystruckparts.com/dukes-of-hazzard-dixie-air-horn-system/?gclid=EAIaIQobChMI4NuDg7iI3gIVl7XACh1S2wCVEAQYASABEgIfxfD_BwE

of course he's from Canada

The Chevy Volt has one, it’s very useful for cars that don’t make noise because people don’t realize you’re driving behind them

I always thought a short honk is a somewhat friendly one and a long one is a "WTF are you doing?"

https://youtu.be/lv8wqnk_TsA this guy puts in a custom horn that has a friendly, super friendly and scare the crap out of you options

Or put a train horn to really drive your point