Question about 2003 Chevrolet Silverado 1500

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Need factory wiring codes

The harness for my truck is $100 and if I could get the factory codes I could just splice the wires

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2003 Chevrolet Silverado 1500 Car Radio Wiring Diagram
Car Radio Battery Constant 12v+ Wire: Orange
Car Radio Accessory Switched 12v+ Wire: The radio harness does not provide a switched power source. Run a wire to the fusebox for switched power.
Car Radio Ground Wire: Black/White
Car Radio Illumination Wire: Gray
Car Stereo Dimmer Wire: Brown
Car Stereo Antenna Trigger Wire: Pink
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: Under the center console.
Car Audio Front Speakers Size: N/A
Car Audio Front Speakers Location: N/A
Left Front Speaker Positive Wire (+): Tan
Left Front Speaker Negative Wire (-): Gray
Right Front Speaker Positive Wire (+): Light Green
Right Front Speaker Negative Wire (-): Dark Green
Car Audio Rear Speakers Size: N/A
Car Audio Rear Speakers Location: N/A
Left Rear Speaker Positive Wire (+): Brown
Left Rear Speaker Negative Wire (-): Yellow
Right Rear Speaker Positive Wire (+): Dark Blue
Right Rear Speaker Negative Wire (-): Light Blue
If that dosnt match with your vehicle try this tip, 1st always find your speaker wires first,Since this is the most tedious part, its better to get those out of the way, 2nd thing Disconnect the battery of the vehicle so you don't blow fuses for the head unit, 3rd, strip back all of the wires that are available to you. Its better to grab the all together and cut them all an equal length to make it neat. 4th
Once you have all your wires stripped back - Grab any single wire. Hold it against a terminal on the battery and one by one go through and tap every other wire against the other terminal of the battery until you hear a "pop". When you hear a speaker popping, you have correctly identified the wires that run directly to it. If on the first attempt at popping a speaker you don't find one, pick up another wire and repeat the process. They will eventually come, and the more you identify, the fewer wires you have to mess with, You will need these Items,You'll need some wire strippers, a digital multimeter, electrical tape,9 volt battery

Posted on Oct 18, 2008

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