2009-2011 Gmc Sierra Vehicle Wiring Chart and Diagram Listed below is the vehicle specific wiring diagram for your car alarm, remote starter or keyless entry installation into your 2009-2011 Gmc Sierra information outlines the wires location, color and polarity to help you identify the proper connection spots in the vehicle. 2009 GMC Sierra 1500 | Stereo Wiring Diagram April 13th, 2014 Posted in GMC Sierra 1500. 2009 GMC Sierra 1500 Stereo Wiring Information. Radio Battery Constant 12V+ Wire: Red/White The stereo wiring diagram listed above is provided “as is” without any kind of warranty. Use of the information above is at your own risk. 2009 GMC Sierra 1500 Car Audio Wire Schematic - ModifiedLife Whether your an expert GMC Sierra 1500 mobile electronics installer, GMC Sierra 1500 fanatic, or a novice GMC Sierra 1500 enthusiast with a 2009 GMC Sierra 1500, a car stereo wiring diagram can save yourself a lot of time. Automotive wiring in a 2009 GMC Sierra 1500 vehicles are becoming increasing more difficult to identifyCop This Deal 2009 GMC Sierra Trailer Wiring | etrailer Fastest shipping available and a lowest price 2009 GMC Sierra trailer wiring guarantee. Expert lifetime technical support on all purchases. Complete 2009 GMC Sierra Trailer Wiring installation instructions and customer reviews. Call 800-298-8924 to place your order or order online at etrailer. 2009 GMC Sierra Radio Wiring - the12volt 2009 GMC Sierra Radio Wiring - I need a diagram for the 09 sierra standard radio. Trying to connect a cleansweep but don't know what wire is what. Thanks..