2002 Pontiac Sunfire OE Wiring Harnesses & Stereo Adapters Pontiac Sunfire 2002, 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. 2002 pontiac wiring harness | eBay Find great deals on eBay for 2002 pontiac wiring harness. Shop with confidence.