Chevrolet Astro Van / GMC Safari Car Audio
Car Stereo Repair
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Car Stereo Removal and Replacement

1.1) Pull open side panel.
2.1) Gently pull dash trim panel forward.
2.2) Disconnect connectors.
2.3) Lift right side of panel up allowing access to to car radio.
2.4) In some cases, the AC vent will unclip while removing panel. Set to side and clip back into place on panel. Bottom left side of panel may have to be inserted behind lower dash before placing panel back in place.
   
3.1) Push down on releases on each side of car radio and pull forward to release from dash.
3.2) Disconnect antenna and connectors.
   
Speaker Phasing
Installing Aftermarket Speakers and Proper Hook-up
   
Troubleshooting Poor Reception and Antenna Replacement
   
NO AUDIO
With aftermarket stereo installation?
   
Factory Wire Color Codes
See Diagrams Below
   
Aftermarket Wire Color Codes
See Diagrams Below
 
Front and Rear Speaker Removal and Replacement presently not available.
   
GM / Delco / Delphi - Wire Diagrams - Wire Color Codes
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Wire Diagrams, Cadillac, Chevrolet, Corvette, Geo, GMC, Oldsmobile, Pontiac and Saturn.
DO NOT CUT FACTORY WIRE HARNESS
   
Aftermarket stereo installation? Why purchase the aftermarket wire harness? Installation is easier, no guess work with wire color codes and a Headache Saver! Factory wire colors codes are not universal. See Aftermarket Videos above.
We discourage cutting the factory wire harness.
This section aids in troubleshooting and determining wire color codes, phasing for speaker hook up, locating power wires for installing external devices and add-ons.
Diagrams may not be applicable to Bose Audio Systems
   
1978 - 1992
IMPORTANT - There are two (2) yellow*, two (2) gray and two (2) brown wires in this harness. Locate the +12 volt constant wire first. Label it or splice to constant wire on aftermarket stereo first. Swapping yellow wires will cause damage to any aftermarket stereo. Check fuses if your unable to find +12 volts.
Car Stereo Wire Color Codes and Wire Diagrams Wire color codes and connector pin outs
1   Black Ground
2   Gray Dimmer
3   or Blank Antenna/Amplifier Trigger On
4   Yellow Switched +12 volts
5   Light Green Right Front Speaker (+)
6   Tan Left Front Speaker (+)
7   Gray Left Front Speaker (-)
8   Dark Green Right Front Speaker (-)
9   Brown Left Rear Speaker (+)
10   Dark Blue Right Rear Speaker (+)
11   Light Blue Right Rear Speaker (-)
12   Yellow Left Rear Speaker (-)
    Factory Wire Harness On Factory Car Stereo  
13     Orange Orange Constant +12 Volts
14     Brown Brown Illumination

Corvette Only with Second One Wire Black Connector

15       Pink Bose Amplifier Trigger On
   
1988 - 2005
GM Wire Harness Diagram, Wire Color Codes and Pin Configuration Wire color codes and wire diagrams
IMPORTANT - There are two (2) yellow*, two (2) gray and two (2) brown wires in this harness. Locate the +12 volt constant wire first. Label it or splice to constant wire on aftermarket stereo first. Swapping yellow wires will cause damage to any aftermarket stereo. Check fuses if your unable to find +12 volts.
1   Gray Left Front Speaker (-)
2   Tan Left Front Speaker (+)
3   Dark Green Right Front Speaker (-)
4   Light Green Right Front Speaker (+)
5   Black Ground
6   Brown Illumination
7   Gray Dimmer
8   Blank  
9   Yellow* (Green) Switched +12 volts
10   Orange Constant +12 volts
11   Light Blue Right Rear Speaker (-)
12   Dark Blue Right Rear Speaker (+)
13   Yellow Left Rear Speaker (-)
14   Brown Left Rear Speaker (+)
   
All wire diagrams and color codes are not 100% accurate.
   

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Factory Car Stereo Repair, Inc.

   
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