Wis. Admin. Code Trans 305.42
Horn
Cite as Wis. Admin. Code Trans § 305.42
Horn.
(1) Every motorcycle shall be equipped with a horn which is securely attached to the cycle and is in conformity with this section and s. 347.38 , Stats.
(2) The horn shall be activated by use of a button to make the electrical connection and shall be maintained in proper working condition.