saturn ion wiring harness | eBay www›Search›saturn ion wiring harnessFind great deals on eBay for saturn ion wiring harness. Shop with confidence. Skip to main content. eBay Logo: Shop by category. Shop by category. Enter your search keyword 2004-2005 SATURN ION, VUE Car Stereo Double DIN Install Dash Kit, Wire Harness See more like this. 2004 Saturn Ion OE Wiring Harnesses & Stereo Adapters Saturn Ion 2004, 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.