Wis. Admin. Code Trans 305.25
Horn
Cite as Wis. Admin. Code Trans § 305.25
Horn.
(1) The horn of every motor vehicle shall be maintained in proper working condition and in conformity with this section and s. 347.38 , Stats.
(2) The horn wiring and connections shall be maintained in good condition.
(3) The horn shall be securely fastened to the vehicle.
(4) Every motor vehicle shall be equipped with a bar, button, ring or other actuation device for making electrical connection. The device shall be easily reached from the driver’s seat while the driver is secured by a safety belt. A hand-activated horn utilizing an air bulb does not meet the requirements of this section.