GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 65118  Size: SH
  1. Remove the front floor kick-up panel. Refer to Front Floor Kick-Up Panel Replacement in Interior Trim.
  2. Remove the cover from theinstrument panel (IP) electrical center.
  3. Remove the RDO/ANT MiniFuseĀ® #24 from the IP electrical center.
  4. Remove the IP left lower insulator panel. Refer to Instrument Panel Insulator Panel Replacement - Left Side in Instrument Panel, Gages and Console.
  5. Disconnect the electrical/audio connector from the BoseĀ® signal processing module.

  6. Object Number: 65115  Size: SH

    Important: The signal processing module is only held in place by retaining bolts. Be sure to support the signal processor upon removal of the bolts.

  7. Remove the bolts retaining the BoseĀ® signal processor to the steering column bracket.
  8. Remove the signal processing module.

Installation Procedure


    Object Number: 65115  Size: SH
  1. Install the BoseĀ® signal processing module into position on the steering column bracket.
  2. 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 BoseĀ® signal processing module retaining bolts.
  4. Tighten
    Tighten the BoseĀ® signal processing module retaining bolts to 2.5 NĀ·m (22 lb in).


    Object Number: 65118  Size: SH
  5. Connect the electrical/audio connector to the signal processing module.
  6. Install the IP left lower insulator panel. Refer to Instrument Panel Insulator Panel Replacement - Left Side in Instrument Panel, Gages and Console.
  7. Install the RDO/ANT MiniFuseĀ® #24 to the IP electrical center.
  8. Install the cover to the I/P electrical center.
  9. Install the front floor kick-up panel. Refer to Front Floor Kick-Up Panel Replacement in Interior Trim.