Horntones FX-550 MP3 car horn

November 9, 2007, 8:00 AM PST | Length: 140

CNET's Brian Cooley shows off new tech at the 2007 SEMA show in Las Vegas: a way to download MP3s to your car horn. If you hate other people's booming car audio systems, Horntones might push you right over the edge.