Except as otherwise allowed under this chapter, no person shall use or operate or permit to be used or operated a radio, tape player, tape recorder, compact disc player, or any similar device in or attached to a vehicle whether moving, stopped or parked, occupied or unoccupied, which is audible to a person of normal hearing sensitivity more than fifty feet from such vehicle or, as to any vehicle not located on a public street, so audible more than fifty feet from the property line of the property on which such vehicle is located. This section shall not apply to acts proscribed by Vehicle Code Section 27007 after the effective date of such section, to any sound system being operated to request assistance or to warn of a hazardous situation, to any authorized emergency vehicle or vehicles operated by gas, electric, communications or water utilities. (Ord. 3924 § 3, 1999)