Do you remove the rear seat to change the rear speaker in 2001 deville?

Yes, to change the rear speakers in a 2001 Cadillac DeVille, you typically need to remove the rear seat. This involves unbolting the seat bottom and possibly the seat back to access the speaker openings. Once the seat is removed, you can easily access and replace the rear speakers. Always consult the vehicle's service manual for specific instructions and safety precautions.