sound truck

sound truck
    n 1: a truck equipped with a loudspeaker and used for
         advertising
    

45 Moby Thesaurus words for "sound truck":
      Gramophone, PA, PA system, Victrola, audio sound system,
      audiophile, binaural system, bitch box, bullhorn, cartridge,
      ceramic pickup, changer, crystal pickup,
      derived four-channel system, discrete four-channel system,
      four-channel stereo system, hi-fi, hi-fi fan, high-fidelity,
      intercom, intercommunication system, jukebox, magnetic pickup,
      monaural system, mono, needle, nickelodeon, phonograph,
      photoelectric pickup, pickup, public-address system,
      quadraphonic sound system, radio-phonograph combination,
      record changer, record player, sound reproduction system,
      squawk box, stereo, stylus, system, tape deck, tape recorder,
      tone arm, transcription turntable, turntable