Hyundai Alarm, Remote Start, and Stereo Wiring Disclaimer: * All information on this site ( the12volt ) is provided "as is" without any warranty of any kind, either expressed or implied, including but not limited to fitness for a particular use. Any user assumes the entire risk as to the accuracy and use of this information. Please verify all wire colors and diagrams before applying any information. Hyundai Elantra Stereo Wiring Harness - AutoZone Order Hyundai Elantra Stereo Wiring Harness online today. Free Same Day Store Pickup. Check out free battery charging and engine diagnostic testing while you are in store.