GM Full-Size Trucks 1988-1998 Repair Information

Radio

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REMOVAL & INSTALLATION




WARNING
Make certain that the speaker is attached to the radio before the unit is turned ON. If it is not, the output transistors may be damaged.

1988-91 R/V Series

See Figure 1

  1. Disconnect the negative battery cable.
  2.  
  3. Remove the control knobs and the bezels from the radio control shafts.
  4.  
  5. Remove the nuts from the support shafts.
  6.  
  7. Remove the support bracket retaining screws.
  8.  



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Fig. Fig. 1: Radio installation-1988-91 R/V series

  1. Lifting the rear edge of the radio, push the radio forward until the control shafts clear the instrument panel. Then, lower the radio far enough so that the electrical connections can be unplugged.
  2.  
  3. Remove the power lead, speaker, and antenna wires and then pull out the unit.
  4.  

To install:
  1. Connect the power lead, speaker, and antenna wires and then install the unit.
  2.  
  3. Attach all electrical leads.
  4.  
  5. Install the support bracket retaining screws.
  6.  
  7. Install the nuts on the support shafts.
  8.  
  9. Press the control knobs and the bezels onto the radio control shafts.
  10.  
  11. Connect the negative battery cable.
  12.  

1988-94 C/K Models

See Figures 2 through 7

  1. Disconnect the negative battery cable.
  2.  
  3. Remove the instrument cluster trim and bezel.
  4.  
  5. Remove the retainers or screws.
  6.  
  7. Pull the unit towards you just far enough to disconnect the wiring. Then, remove the unit.
  8.  



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Fig. Fig. 2: Radio control head installation



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Fig. Fig. 3: Remove the trim retaining screws



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Fig. Fig. 4: Remove the trim plate

To install:
  1. Connect the wiring to the control head and then slide it into the hole. Fasten the retainers or snap the retainers into place.
  2.  
  3. Install the panel bezel.
  4.  
  5. Connect the battery cable.
  6.  



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Fig. Fig. 5: Remove the audio component retaining fasteners



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Fig. Fig. 6: Remove the tape player from the instrument panel and disengage the electrical connections



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Fig. Fig. 7: Remove the radio from the instrument panel and disengage the electrical connections

1995-98 C/K Models
  1. Disconnect the negative battery cable.
  2.  
  3. Remove the accessory trim plate.
  4.  
  5. If the unit is retained with screws, unfasten the screws.
  6.  
  7. If the unit is not retained by screws, release the retainers using a small screwdriver and pull out the unit.
  8.  
  9. Unplug all electrical connections and remove the unit.
  10.  

To install:
  1. Attach all electrical connections to the unit.
  2.  
  3. Slide the unit into position.
  4.  
  5. If the unit is not retained by screws, push the unit in until the retainers are fully engaged.
  6.  
  7. If the unit is retained with screws, install and tighten the screws.
  8.  
  9. Install the trim plate.
  10.  
  11. Connect the battery cable.
  12.  

 
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