YouTuber Mark Rober Released a Video Showing How to Make a Polite Car Horn

 - Jun 15, 2017
References: youtube & mashable
YouTuber Mark Rober has created a way for drivers to better communicate with one another using his friendly car horn DIY.

As Rober says in the video, communicating with other drivers is pretty one-dimensional, and not at all effective when using a traditional car horn. That's why he created a DIY solution for a multi-sound car horn. With three distinct horn sounds, drivers could infer tone and level of urgency from the horn being selected. The sounds range in intensity from meek to freight train so that other drivers will know the difference between you just wanting them to take advantage of the advanced green light and when they are breaking road rules.

Most importantly, this friendly car horn DIY doesn't interfere with the car's original horn so your vehicle is still prepared in the case of an emergency. With the help of a mechanic, this DIY is a simple and inexpensive way to customize a vehicle's features.