2006 Hyundai Santa Fe | Stereo Wiring Diagram 2006 Hyundai Santa Fe Stereo Wiring Information. Radio Constant 12v+ Wire: Red. Radio Switched 12v+ Wire: Yellow. Radio Ground Wire: Black. Radio Illumination Wire: Green/Orange. Stereo Dimmer Wire: Black/Orange. Left Front Speaker Positive Wire (+): White. Left Front Speaker Negative Wire (-): Brown. Right Front Speaker Positive Wire (+): Yellow. Hyundai Santa Fe Wiring Control Engine Collection | Wiring Hyundai Santa Fe Wiring Control Engine. Print the cabling diagram off plus use highlighters in order to trace the circuit. When you make use of your finger or the actual circuit together with your eyes, it is easy to mistrace the circuit. A single trick that I actually 2 to printing the same wiring diagram off twice.