(1) It's a violation of this statute to operate, or permit the operation of, any sound amplification system which is plainly audible outside of a vehicle from 50 or more feet when the vehicle is on a public highway or on premises open to the public, unless that system is being operated to request assistance or warn of a hazardous situation

(2) Paragraph (1) doesn't apply to:

(a) Vehicles being operated outside of an urban growth boundary

(b) Emergency vehicles

(c) Vehicles operated by utilities or telecommunications carriers

(d) Sound systems of vehicles used for advertising, or in parades, political or other special events, except that the use of sound systems on those vehicles may be prohibited by a local authority by ordinance or resolution;

(e) Audio alarm systems installed in vehicles OR

(f) Federal Communications Commission licensed two-way radio communications systems.