2004 GMC Yukon Car Audio Wiring Diagram - ModifiedLife Whether your an expert GMC Yukon mobile electronics installer, GMC Yukon fanatic, or a novice GMC Yukon enthusiast with a 2004 GMC Yukon, a car stereo wiring diagram can save yourself a lot of time. Automotive wiring in a 2004 GMC Yukon vehicles are becoming increasing more difficult to identify due to the installation of Read More Read More You are currently viewing GMC - Gmc | Stereo Wiring Diagram Stereo Wiring Diagram. Request Stereo Diagrams; Stereo Wiring Diagrams | Subcribe via RSS. You are currently viewing GMC Please select your model; GMC Acadia; GMC Canyon; GMC GMC Topkick C4500; GMC Topkick C5500; GMC Topkick C6500; GMC Topkick C7500; GMC Topkick C8500; GMC Typhoon; GMC Yukon; GMC Yukon Denali; GMC Yukon XL; GMC Yukon XL 2003 Gmc Yukon Stereo Wiring Diagram | Free Wiring Diagram Assortment of 2003 gmc yukon stereo wiring diagram. A wiring diagram is a simplified standard pictorial representation of an electric circuit. It reveals the components of the circuit as simplified shapes, and also the power and also signal connections in between the tools.