For a fancier solution, [Tom Hammond] whipped up a custom car horn capable of playing a wide variety of sounds. The system uses the Adafruit Audio FX board. This is a unique part, which is ...

The FX-550 can deliver hundreds of different sounds at an impressive 110db ... the Horntones FX-550, the first MP3-enabled vehicle horn. For more information, please visit www.horntones.com.