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Engineer creates world's friendliest car horn

Autoblog logo Autoblog 15/06/2017 Jason Marker

Have you ever wanted a nicer-sounding car horn? Something a little more pleasant and nuanced than the blat of a standard horn, to send friendly reminders to people or catch their attention without looking like a huge jerkbag? Well, an engineer and YouTuber named Mark Rober had the same idea, so he installed a custom horn system in his Jetta.

In an effort to provide more methods of communication than the standard turn signals and horn (and in some cases the driver's middle finger), Rober set out to build a custom horn rig with multiple sounds. Using a cheap, easily programmable soundboard, an inline inverter, a cheap amp, a cheap PA speaker, some odds and ends, and some good old-fashioned know-how, he put together a tri-tone system that's both cool and functional.

He mounted the PA speaker under his VW's hood and wired it to a trio of light-up horn buttons he custom installed in his centre console. He then programmed the soundboard with two sounds – a friendly two-beat reminder tone and an even friendlier recording of Star Wars' R2-D2 chirping. For some added oomph, he installed a 120 psi air-horn and wired it to a third button for those times when he really needs to grab someone's attention.

Rober posted a great video of his custom horn build on YouTube, and he lays out all the parts with some easy-to-follow instructions. Who knows, maybe this will catch on and in the near future we'll see this as a standard feature on cars and trucks!


Related: Pimp your ride: Dos and don'ts of car modification (Read Cars)

Pimp your ride: some Dos and Don'ts on car modification: Modern cars are wonders of engineering, we take a lot for granted but the combination of power, efficiency and responsiveness even a mid-range sports saloon provides is miles ahead of what was possible even just 10 years ago.In addition, the proliferation of turbocharged engines with complex electronic systems has been a boon for tuning specialists. Whereas before one had to resort to expensive internal component modifications to get meaningful power gains, similar results can now be had with a simple remap on a modern engine.The availability of a vast range of aftermarket tuning parts also means that you really have a lot of choice in what to do.Modification done right can improve the handling, performance and look of your car well beyond its original specifications. Done wrong and you can potentially have an unreliable, uncomfortable and expensive mess on your hands.Whether you just want to upgrade the radio or want to transform the entire look of your car we have some practical advice for you before you get started. Pimp your ride: some Dos and Don'ts on car modification

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