How to Replace the Radio for a 1994 Chevy Truck

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Chevy's 1994 line of light and full-size trucks came equipped with standard AM/FM stereo cassette players. Optional stereos included single-disc CD players. Later models (in the 1990s) were available with optional multi-disc CD changers. Chevy truck owners who seek a more powerful and capable stereo system can upgrade their stereo systems with aftermarket units. Use a GM aftermarket stereo installation kit to ensure a quality fit and simple installation.

Things You'll Need

  • Wrench, 10mm
  • Phillips-head screwdriver
  • Socket, 7mm (and drive)
  • Wiring harness adapter
  • GM stereo installation kit (with faceplate adapter)
  • Disconnect the grounding cable from the negative battery terminal with a 10mm wrench. The grounding cable connects the negative lead post with the frame of the truck.

  • Open the glove compartment and remove the two screws on the left edge of the compartment opening with a Phillips-head screwdriver.

  • Open the ashtray and remove the screw at the left corner, inside the ashtray compartment, with the screwdriver.

  • Pull the dash trim panel away from the dashboard to reveal the stereo mounting bracket.

  • Remove the two bolt screws on either side of the stereo with a 7mm socket and drive.

  • Pull the factory stereo from the stereo mounting dock and disconnect the stereo wiring connected to the back of the unit. The speaker wiring and power supply cables are on the left side of the stereo, the antenna cable is connected to the right side.

  • Place the antenna cable adapter (from the GM stereo installation kit) onto the antenna cable plug.

  • Connect the stereo wiring from the Chevy to a wiring harness adapter. The wiring harness adapter will have illustrations in the accompanying manual or on the harness itself, to show where the appropriate connections are to be made.

  • Place the faceplate adapter (from the installation kit) onto the face of the aftermarket stereo.

  • Connect the wiring harness adapter leads to the back of the new stereo. Plug in the adapter antenna cable to the back of the aftermarket stereo.

  • Slide the new stereo into the stereo mounting dock of the Chevy truck. Secure the radio with the two 7mm bolt screws.

  • Replace the dash panel around the stereo dock. Replace the screw in the ashtray opening and the two screws on the left edge of the glove-compartment opening with the screwdriver. Close the glove-compartment.

  • Place the grounding cable clamp around the negative lead post of the Chevy battery. Tighten the bolt, securing the clamp around the lead post, with the 10mm wrench. Close the hood of the truck.

Tips & Warnings

  • GM aftermarket stereo installation kits can be purchased through the GM dealership or third party stereo supply outlets (brick and mortar as well as online).

References

  • Photo Credit autoradio 2 image by Nathalie P from Fotolia.com
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