Chrysler Full-Size Trucks 1967-1988 Repair Guide

Radio

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REMOVAL & INSTALLATION



1967-72 Models

See Figures 1 and 2

  1. Disconnect the battery ground cable.
  2.  
  3. Disconnect all wiring and the antenna lead from the radio.
  4.  



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Fig. Fig. 1: Common radio and speaker connection



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Fig. Fig. 2: Exploded view of 1968-72 radio components

  1. Remove the control knobs, bezel mounting screws, bezel, and radio mounting nuts.
  2.  
  3. Remove the radio mounting bracket and remove the radio.
  4.  
  5. Installation is the reverse of removal.
  6.  

1973-88 Models

See Figures 3, 4 and 5

  1. Disconnect the fusible link in the engine compartment.
  2.  
  3. Remove the instrument cluster bezel.
  4.  
  5. On trucks with air conditioning, remove the left air conditioner duct.
  6.  
  7. Remove the radio-to-cluster mounting screws.
  8.  



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Fig. Fig. 3: Radio installation-1975-77 models



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Fig. Fig. 4: Radio installation-1978-80 models



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Fig. Fig. 5: Radio installation-1981-88 models

  1. Remove the ground strap screw.
  2.  
  3. Disconnect all wiring and the antenna lead from the radio.
  4.  
  5. Push the radio away from the cluster and carefully lower it from the panel.
  6.  

To install:
  1. Connect the wiring and antenna lead.
  2.  
  3. Position the radio in place, install the mounting screws.
  4.  
  5. Install the ground strap screw.
  6.  
  7. Install the cluster bezel.
  8.  
  9. Connect the fusible link.
  10.  

ANTENNA LEAD CONNECTIONS



See Figure 6

Antenna leads are connected in one spot of the truck, depending on how many antennas you have on your truck. The end, of course, has to go to the back of the radio, CB radio, phone, etc. It is a quite simple procedure to remove and install the antenna lead cable. Locate the lead wire input on the back of your unit. Carefully pull outward on the lead to remove it from the radio, CB, etc. To install, push the lead back into the opening, making sure it is snug.



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Fig. Fig. 6: Unplugging the antenna lead from the radio

TRIMMER ADJUSTMENT



See Figure 7

All radios are trimmed at the factory and should require no further trimmer adjustment, unless the radio is being installed after repair, or if trimmer adjustment is desired because of poor performance.

  1. Extend the antenna to full length for best FM reception.
  2.  
  3. Tune the radio to a weak signal between 1400 and 1600 kilocycles on the AM band.
  4.  
  5. Increase the radio volume and set the tone control to maximum treble.
  6.  
  7. The trimmer screw on most radios is located at the lower rear right-hand corner of the radio, and can be reached by inserting a tool into the recess hole.
  8.  



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Fig. Fig. 7: Use a screwdriver for the trimmer adjustment

  1. Adjust the trimmer by turning it back and forth until peak response in volume is obtained.
  2.  

 
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