28085
VEHICLE CODE
SECTION 28085
28085. Any motor vehicle may be equipped with a theft alarm system which flashes the lights of the vehicle, or sounds an audible signal, or both, and which operates as follows: (a) The system may flash any of the lights required or permitted on the vehicle. (b) The system may sound an audible signal. (c) No vehicle shall be equipped with a theft alarm system which emits the sound of a siren.