1993 Honda Civic OE Wiring Harnesses & Stereo Adapters Honda Civic 1993, 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. Honda Civic Wiring Harness | Auto Parts Warehouse We know car parts and we know auto parts. We're here to help you find that perfect Wiring Harness for your Honda Civic. We love when auto parts experts come to our site and we love when car parts newbies come to our site. We have worked hard to design a site that caters to everyones Honda Civic Wiring Harness needs.