WiringProducts - The Place to Buy Automotive Wiring Supplies WiringProducts is the online place to buy automotive wiring and electrical supplies. Many of our wiring products are made in the USA. We stock thousands of electrical parts such as wire, switches, circuit breakers, cables, fuse blocks, and more.Wire and Cable · Wire Terminals · Rocker Switches · Wire Connectors · Automotive Wire · Switch Panels Amazon: automotive wiring harness supplies 1-16 of over 3,000 results for "automotive wiring harness supplies" Skip to main search results Amazon Prime. Eligible for Free Shipping. JHE Horn Wiring Harness Kits for Car Truck Grille Mount Blast Tone Horns with 16AWG. 3.8 out of 5 stars 28. $12 $ 12. 99. $1 coupon applied. Related searches for car wiring harness supplies automotive wiring harness supplieskit car wiring harnessclassic car wiring harnessreplacement wiring harness for carseasy wiring harness for carscustom wiring harness for carscar wiring harness connectorsauto wiring harness