GM Cutlass RWD 1970-1987 Repair Guide

Radio

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The antenna trim must be adjusted on AM radios, when major repair has been done to the unit or the antenna changed. The trimmer screw is located behind the right side knob. Raise the antenna to its full height. Tune to a weak station around 1400 and turn the volume down until barely audible. Turn the trimmer screw until the maximum volume is achieved.

REMOVAL & INSTALLATION



See Figures 1, 2, 3, 4, 5 and 6

1970-72
  1. Disconnect the negative battery cable.
  2.  
  3. If equipped with air conditioning, remove the cool air manifold, if necessary.
  4.  
  5. Remove the defroster manifold, if necessary.
  6.  
  7. Remove the radio knobs washers or rear speaker control.
  8.  



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Fig. Fig. 1: Exploded view of radio installation - through 1977

  1. Remove the radio attaching nuts or escutcheons.
  2.  
  3. Disconnect the wiring including the antenna lead-in.
  4.  
  5. Remove the radio support bracket attaching screw(s), if applicable.
  6.  
  7. Remove the radio from the rear of the instrument panel.
  8.  

To install:
  1. Install the radio, the wiring and the antenna lead.
  2.  
  3. Install the attaching nuts or escutcheons.
  4.  
  5. Install the rear speaker control or washers and radio knobs.
  6.  
  7. Install the defroster manifold and cool air manifold (if removed).
  8.  
  9. Connect the negative battery cable.
  10.  



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Fig. Fig. 2: To remove the radio, first remove the radio knobs



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Fig. Fig. 3: Remove the radio trim panel



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Fig. Fig. 4: Remove the radio bracket attaching fasteners



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Fig. Fig. 5: Carefully slide the radio out of it's mounting location



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Fig. Fig. 6: Disengage the electrical connections

1973-77
  1. Disconnect the negative battery cable.
  2.  
  3. Remove the four screws which secure the steering column cover and separate it from the instrument panel.
  4.  
  5. Pull the knobs off of the front of the radio and remove the retaining nuts.
  6.  
  7. Remove the four retaining screws, then pull the right hand control panel up and out.
  8.  
  9. Unfasten the radio support bracket screw.
  10.  
  11. Remove the four ash tray housing screws and take the housing off the tie bar.
  12.  
  13. Disconnect the antenna and speaker wire from the radio.
  14.  
  15. Remove the radio from behind the instrument panel.
  16.  

To Install:
  1. Install the radio, connect the speaker and antenna wires
  2.  
  3. Install the ash tray housing, the four screws and the radio support bracket.
  4.  
  5. Install the right hand control panel and fasten the four retaining screws.
  6.  
  7. Fasten the retaining nuts and install the knobs.
  8.  
  9. Install the steering column and fasten the four screws, connect the negative battery cable
  10.  

1978-87
  1. Disconnect the negative battery cable and remove the radio knobs.
  2.  
  3. Pull the lower trim cover outward, off the retaining clips.
  4.  
  5. Remove the four mounting plate screws and the screw from the radio support bracket on the lower tie bar.
  6.  
  7. Pull the radio out and detach the wiring and the antenna lead.
  8.  
  9. Installation is the reverse of removal.
  10.  

 
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