531.03 OPERATION OF SOUND AMPLIFICATION SYSTEMS IN MOTOR VEHICLES.
   (a)    No person operating or occupying a motor vehicle upon any public road, street, highway, parking area or private property within the City shall knowingly operate or permit the operation of any sound amplification system from the vehicle as follows:
      (1)    So as to disturb the quiet, comfort or repose of other persons; or
      (2)    At a volume that is audible from a distance of one hundred (100) feet outside of the vehicle.
   (b)    Any law enforcement personnel who hears an audible sound, for purposes of subsection (a)(2) of this section, shall measure the sound according to the following standards:
       (1)    The primary means of detection shall be by means of the officer's auditory senses.
       (2)    The officer must have a direct line of sight and hearing to the motor vehicle producing the sound such that both the offending motor vehicle and the distance involved can readily be identified.
      (3)    The officer need not determine the particular words or phrases being produced or the name of any song or artist producing the sound. The detection of a rhythmic bass reverberating type sound is sufficient to constitute an audible sound.
   (c)    Whoever violates this section shall be guilty of a minor misdemeanor upon a first offense; shall be guilty of a fourth degree misdemeanor upon a second offense within twelve months of the first offense; and shall be guilty of a third degree misdemeanor upon three or more offenses within twelve months of the first offense.