2001 Toyota Echo OE Wiring Harnesses & Stereo Adapters Toyota Echo 2001, Wiring Harness by Metra®, with OEM Radio and Speakers Plugs. For factory stereo. This high-quality Metra wiring harness is just what you need to replace your defective or aged factory wiring harness. Toyota Echo Stereo Wiring Harness - AutoZone Order Toyota Echo Stereo Wiring Harness online today. Free Same Day Store Pickup. Check out free battery charging and engine diagnostic testing while you are in store.