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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1403 (ENTERTAINMENT SYSTEM)REPAIR INSTRUCTIONSCOAXIAL CABLE REPLACEMENT - DIGITAL RADIOINSTALLATION PROCEDURE
2003 Chevrolet TrailBlazer 4.2 S, 4WD

Installation Procedure

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Installation Procedure
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Routing Coaxial Cable Behind I/P
    GM1237263Courtesy of GENERAL MOTORS CORP.
  1. Securely attach the mechanics wire already routed behind the I/P to the end of the coaxial cable (3).
  2. If equipped, carefully remove the rose bud (1) from the coaxial cable.
  3. Grasp and gently pull the mechanics wire through the cowl insulator, routing the coaxial cable behind the I/P.
  4. Attach the lower rose bud (2) to the cowl.
    5. Fig 2: Attaching Coaxial Cable To Right Windshield Pillar
    GM1236116Courtesy of GENERAL MOTORS CORP.
  5. Connect the coaxial cable to the digital radio receiver.
  6. Attach the coaxial cable to the right windshield pillar (1).
  7. Install the right front door sill plate. Refer to Door Sill Plate Replacement - Front in Interior Trim.
  8. Install the right closeout insulator panel. Refer to Closeout/Insulator Panel Replacement - Right Instrument Panel, Gages and Console.
  9. Connect the electrical connectors to the digital radio antenna assembly. Refer to Antenna Replacement - Digital Radio .
  10. Install the headliner. Refer to Headliner Replacement (TrailBlazer, Envoy, Bravada) , Headliner Replacement (TrailBlazer EXT, Envoy XL) or Headliner Replacement (Envoy XUV) in Interior Trim.
  11. Install the right sunshade and inboard retaining clip. Refer to Sunshade Replacement in Interior Trim.
  12. Install the I/P trim pad. Refer to Trim Pad Replacement - Instrument Panel (I/P) Upper in Instrument Panel, Gages and Console.
  13. Install the right windshield garnish molding. Refer to Garnish Molding Replacement - Windshield Pillar in Interior Trim.
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.