GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 1999 🢒 Astro - 2WD 🢒 Body and Accessories 🢒 Entertainment 🢒 Radio Antenna Replacement

Removal Procedure
  1. Remove the wiper arms. Refer to Windshield Wiper Arm Replacement in Wiper and Washer System.
  2. Unthread the radio antenna mast.
  3. Remove the air inlet grille. Refer to Air Inlet Grille Panel Replacement in Body Front End.
  4. Remove the antenna cable mounting bolts.
  5. Remove the radio.

    6. Important: Do not remove the instrument panel.

  6. Roll the instrument panel back. Refer to Instrument Panel Assembly Replacement in Instrument Panel and Gauges.

    7. Object Number: 306871 Size: SH
  7. Remove the antenna cable from the clip at the HVAC module.

    8. Object Number: 306872 Size: SH
  8. Remove the antenna through the grommet on the cowl.
  9. Remove the antenna cable from the vehicle.

Installation Procedure
  1. Install the antenna cable to the vehicle.

    2. Object Number: 306872 Size: SH
  2. Install the antenna cable though the grommet on the cowl.

    3. Object Number: 306871 Size: SH
  3. Install the antenna cable to the clip at the HVAC module.
  4. Roll the instrument panel up. Refer to Instrument Panel Assembly Replacement in Instrument Panel and Gauges.
  5. Install the radio.

    6. 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.

  6. Install the antenna mounting bolts.

    7. Tighten
    Tighten the antenna mounting bolts to 2 N·m (18 lb in).

  7. Install the air inlet grille. Refer to Air Inlet Grille Panel Replacement in Body Front End.
  8. Install the radio antenna mast.
  9. Install the wiper arms. Refer to Windshield Wiper Arm Replacement in Wiper and Washer System.
  10. Verify component operation.