2004 Saturn Vue Car Stereo Wiring Schematic - ModifiedLife Whether your an expert Saturn Vue mobile electronics installer, Saturn Vue fanatic, or a novice Saturn Vue enthusiast with a 2004 Saturn Vue, a car stereo wiring diagram can save yourself a lot of time. Automotive wiring in a 2004 Saturn Vue vehicles are becoming increasing more difficult to identify due to the installation of more advanced factory oem electronics. 2004 Saturn Vue OE Wiring Harnesses & Stereo Adapters Saturn Vue 2004, Factory Replacement Wiring Harness by Metra®, with OEM Radio Plug. For factory stereo. This high-quality Metra wiring harness is just what you need to replace your defective or aged factory wiring harness.