Genuine OEM Audi Wiring Harness For Battery, part number 4E4971225J. This wiring harness is specifically designed to connect the vehicle's battery to the main electrical system, facilitating the flow of power for all vehicle functions. It is part of the battery and charging system. Manufactured with high-quality conductors and connectors to ensure reliable and safe electrical transmission. Genuine OEM wiring harnesses are built to exact factory specifications, guaranteeing correct wire gauge, insulation, and connector types for optimal electrical performance and safety.