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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1196 (ENTERTAINMENT SYSTEM)REPAIR INSTRUCTIONSANTENNA EXTENSION CABLE REPLACEMENT (HARDTOP)INSTALLATION PROCEDURE
2003 Chevrolet TrailBlazer 4.2 S, 4WD

Installation Procedure

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Installation Procedure
WARNING: This page is about a different car, the 2003 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
  1. Position the fixed antenna coaxial extension cable to the vehicle.
  2. Install the radio control. Refer to RADIO REPLACEMENT  . 
    Fig 1: Positioning Fixed Antenna Coaxial Extension Cable To Vehicle
    G01453611Courtesy of GENERAL MOTORS CORP.
  3. Secure the fixed antenna coaxial extension cable retainer to the IP lower support beam.
  4. Install the IP right lower insulator panel. Refer to CLOSEOUT/INSULATOR PANEL REPLACEMENT - RIGHT in Instrument Panel, Gages and Console.
    Fig 2: Fixed Antenna Coaxial Extension Cable Retainer
    G01453612Courtesy of GENERAL MOTORS CORP.
  5. Using tape, secure the fixed antenna coaxial extension cable to the front body wiring harness.
  6. Secure the front body wiring harness to the body retainers.
  7. Secure the front body wiring harness retainers to the lock pillar and the floor panel support.
    Fig 3: Securing Front Body Wiring Harness Retainers To Lock Pillar
    G01453613Courtesy of GENERAL MOTORS CORP.
  8. Install the right lock pillar trim panel. Refer to TRIM REPLACEMENT - LOCK PILLAR (UPPER CONVERTIBLE) or TRIM REPLACEMENT - LOCK PILLAR (COUPE) or TRIM REPLACEMENT - LOCK PILLAR (LOWER CONVERTIBLE AND HARD TOP) in Interior Trim.
  9. Install the right door sill plate. Refer to DOOR SILL PLATE REPLACEMENT in Interior Trim.
  10. Position the front body wiring harness to the rear of the vehicle.
  11. Secure the front body wiring harness retainers to the rear speaker housing.
  12. Install the rear compartment right side trim panel. Refer to TRIM PANEL REPLACEMENT - REAR COMPARTMENT FRONT SIDE (COUPE) or TRIM PANEL REPLACEMENT - REAR COMPARTMENT FRONT SIDE (CONVERTIBLE) or TRIM PANEL REPLACEMENT - REAR COMPARTMENT FRONT SIDE (HARDTOP) in Interior Trim.
  13. Secure the front body wiring harness to the retaining clip on the rear compartment side wall.
  14. Connect the fixed antenna coaxial cable to the fixed antenna coaxial extension cable.
    Fig 4: Positioning Front Body Wiring Harness To Rear Of Vehicle
    G01453614Courtesy of GENERAL MOTORS CORP.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.