Buick Grand National Car Radio Removal and Installation

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Grand National
 How to Remove and Install Car Stereo

We Repair this car Stereo

Factory Wire Color Codes
Aftermarket Wire Color Codes

Speaker Phasing
Installing Aftermarket Speakers and Proper Hook-up

Speaker Phasing
Font Left   Front Right
+ Tan   + Light green
- Gray   - Dark green
Rear Left   Rear Right
+ Brown   + Dark blue
- Yellow   - Light blue
With aftermarket stereo installation?
Buick Grand National - Wire Diagrams - Wire Color Codes
Car Stereo Repair | Car Stereo Removal | FAQ | Shipping for Repair | Contact Us
Wire Diagrams, Cadillac, Chevrolet, Corvette, Geo, GMC, Oldsmobile, Pontiac and Saturn.
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
All wire diagrams and color codes are not 100% accurate.
Front and Rear Speaker Removal presently not available.

Car Stereo Repair | Car Stereo Removal | FAQ | Shipping for Repair | Contact Us

Factory Car Stereo Repair, Inc.
1987 Corporate Square, Suite 159
Longwood, Fl. 32750