He wants the DJ to read a declaration of his undying love and desperation, admitting he is "out of his mind" without her.
It is a classic example of Bandinhas or Música de Bailão , featuring upbeat rhythms (often vanera or xote ) contrasted with emotional, dramatic vocals. Musical San Francisco - Diga Locutor
The song captures a classic, melancholic romantic trope: an anonymous lover reaching out to a radio station to send a message to a former flame. He wants the DJ to read a declaration