This is the noise the General Lee makes when they honk the horn.

Artist: Waylon Jennings
Song: General Lee (Horn)
Tabbed by: x95_D-Roc_95x
Tuning: Standard (EADGBe)

P: Pull Off (you don't have to do any of the pull offs in this, it just makes it a 
to me.)

e|--15p12-------------12-15-15-15p12--|
B|--------13-13-13-15-----------------|
G|------------------------------------|
D|------------------------------------|
A|------------------------------------|
E|------------------------------------|

It sounded just like it to me, but if you think it sounds to high, just play it about 
frets lower.