New Zealand city in the crossfire of "speaker battles" that weaponize Céline Dion

Residents of Porirua, New Zealand are fed up with 'speaker battles' (aka 'siren battles') during which vehicles are outfitted with loudspeakers like those used for emergency vehicle sirens. According to Mayor Anita Baker, those involved in this subculture cruise the streets or hold competitions in parking lots. — Read the rest