Home | E Z Wiring | Florida USA At EZ Wiring, we strive to bring you the best harness for the best price. Our harnesses are universal and can fit just about any application. We use top quality gxl cross linked polyethylene jacketed wire to resist heat, oil and water. EZ Wiring Harness | eBay The EZ 21 pre-wired fuse block will wire your car or truck from headlights to taillights. It features 17 fuses and 21 circuits. These EZ wiring kits use GXL 125 high temp cross linked polyethylene jac..