Ford Mustang Wiring Harness | Auto Parts Warehouse Just plur your Ford Mustang and Year into the Year Make Model selector above and when you search for a Wiring Harness Auto Parts Warehouse will only show you parts that fit your vehicle. It's that easy. Ford Mustang Engine Wiring Harness | Advance Auto Parts Advance Auto Parts has 1 different Engine Wiring Harness for your vehicle, ready for shipping or in-store pick up. The best part is, our Ford Mustang Engine Wiring Harness products start from as little as $33. When it comes to your Ford Mustang, you want parts and products from only trusted brands.