GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 1999 🢒 Seville 🢒 Body and Accessories 🢒 Entertainment 🢒 Radio Speaker Amplifier Replacement

Removal Procedure
  1. Remove the rear seat cushion. Refer to Rear Seat Cushion Replacement in Seats.
  2. Remove the rear seat back. Refer to Rear Seat Back Replacement in Seats.
  3. Remove the electronics bay board retaining nut closest to the radio amplifier.

    4. Object Number: 154780 Size: SH
  4. Disconnect the electrical connectors from the radio amplifier.
  5. Remove the screws retaining the radio amplifier to the mounting bracket.
  6. Gently press the loosened electronics bay board rearward to allow for the removal of the radio amplifier.
  7. Remove the radio amplifier from the vehicle.

Installation Procedure

    Object Number: 154780 Size: SH
  1. Install the radio amplifier to the vehicle.
  2. Connect the electrical connectors to the radio amplifier.

    3. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  3. Install the screws to retain the radio amplifier to the mounting bracket.

    4. Tighten
    Tighten the fasteners to 9 N·m (80 lb in).

  4. Tighten the nut to retain the electronics bay board to the vehicle.
  5. Install the rear seat back. Refer to Rear Seat Back Replacement in Seats.
  6. Install the rear seat cushion. Refer to Rear Seat Cushion Replacement in Seats.