2003 Honda Element Car Stereo Radio Wiring Diagram Whether your an expert installer or a novice enthusiast with a 2003 Honda Element, 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 2003 Honda Element. Honda Element Stereo Wiring Harness - AutoZone wwwzone››Honda Element HarnessesOrder Honda Element Stereo Wiring Harness online today. Free Same Day Store Pickup. Check out free battery charging and engine diagnostic testing while you are in store.