Question about 2005 Chevrolet Silverado

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Determine hot wire color and location w/ignition on

I am installing a GPS unit in a 2005 chevy silverado 2500 and need a hot wire after the ignition is on but not hot in the acc. position. can you tell me which color and where to find it?
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    LAYNRAIL May 11, 2010

    Do you have on star....and do you have the Bose system.

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  • 17 Answers

Yellow. you can splice into your factory wiring and work the same as if your ran one straight from the battery

Posted on Mar 11, 2009

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with the ignition in the "off" position get a test light and touch one wire at a time while cycling the ignition switch to the "on" position, When you see that the test light goes off when the ignition switch is in the off position then you found the hot wire, make sure you dont hook it up to the "alway hot " wire or you might drain the battery hope this helps.

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