How do you install rear speakers 1992 Buick roadmaster?

To install rear speakers in a 1992 Buick Roadmaster, first, remove the rear seat bottom by pulling upward to release it from the clips. Then, take out the rear seatback by unscrewing the bolts or clips securing it. Once exposed, disconnect the old speakers and replace them with the new ones, ensuring the wiring is properly connected. Finally, reassemble the seatback and bottom securely.