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GM Wiring Harness

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                    Metra 72-4570 Speaker Harness for Select GM Vehicles$7.99- Replace factory speakers without cutting factory wiring
 - Includes 2 harnesses
 - 18 gauge wire
 
 
Car Stereo Wiring how to's and guides
                
                    What do the wire colors of a car stereo mean?                
            Car stereo wiring is color coded for convenience and simplicity. Each wire color has a specific meaning, we show you what they are.
                
            
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How to install a car stereo
Watch our video and read our blog for step-by-step instructions documenting the installation of a aftermarket car stereo receiver.
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Car Stereo Wiring Guide
Watch our video and read our blog for the proper wiring colors and their definitions. We explain wire-by-wire what these connections do for the installation of an aftermarket car stereo receiver.
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