Question about 2004 Chevrolet Silverado

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I need to know the wire diagram for my 04 Silverado crew cab. Previous owner removed the original stereo and put a horrible after market stereo. Now I want to replace that with a after market stereo can you please help?

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  • Earl DaSquirrel
    Earl DaSquirrel Mar 28, 2015

    so the previous owner hacked into the wiring without using an aftermarket harness connector to the original plug in the vehicle?

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  • 167 Answers

Use a test light and a battery. the black is ground, orange is constant and yellow is your turn on and off (ignition). then take a 9volt battery to check your speaker wires. front should be green and light green and gray and light gray. double check it has ben a while, rear is blue and light blue, a yellow and brown. you do not need any other wires in the harness unless you are using a power antenna or amp which you can use the yellow wire for ignition. double check with test light and 9volt battery. the 9volt battery will make the speaker pop noise, you then know you have a speaker when it makes that noise.

Posted on Mar 31, 2015

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