Car Stereo Radio Wiring Diagram - 2004 Nissan 350Z Whether your an expert installer or a novice enthusiast with a 2004 Nissan 350Z, an automotive wiring diagram can save yourself time and headaches. One of the most time consuming tasks with installing a car stereo, car radio, car speakers, car amplifier, car navigation or any mobile electronics is identifying the correct wires for a 2004 Nissan 350Z. 2004 Nissan 350Z | Stereo Wiring Diagram 2004 Nissan 350Z. September 10th, 2012 Posted in Nissan 350Z. 2004 Nissan 350Z Stereo Wiring Information. Radio Constant 12V+ Wire: Yellow Radio Switched 12V+ Wire: Light Green 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.