How do you install rear deck speakers on a 2002 Mazda 626?

To install rear deck speakers on a 2002 Mazda 626, start by removing the rear deck cover, which typically involves unscrewing or unclipping it from the vehicle's interior. Next, disconnect the old speakers by unscrewing them and unplugging the wiring harness. Install the new speakers by securing them in place and connecting the wiring harness. Finally, replace the rear deck cover and ensure everything is secure before testing the new speakers.