The Metra 70-1777 is a factory radio replacement wiring harness designed for select Ford and Mercury vehicles, including the Mercury Cougar. This plug-and-play harness allows you to install an aftermarket stereo without cutting the factory wiring, helping maintain OEM electrical integrity while simplifying installation. Features & Benefits Direct plug-and-play installation No factory wire cutting required Standard EIA color-coded wiring OEM-style molded connectors Simplifies aftermarket radio installation Maintains factory wiring integrity Durable high-quality construction Compatible with most aftermarket radios Ideal for single-DIN and double-DIN stereo upgrades Specifications Product Type: Radio Wiring Harness Model: 70-1777 Harness Type: Factory radio replacement harness Wiring Standard: EIA color-coded wires Connector Style: OEM Ford/Mercury connectors Installation Type: Plug-and-play Application: Aftermarket stereo installation Compatibility: Select Ford and Mercury vehicles Vehicle Compatibility Compatible with select Ford and Mercury vehicles including: Mercury Cougar Ford Contour Mercury Mystique Additional select Ford/Mercury applications Vehicle compatibility may vary depending on year, trim level, and factory audio configuration. Always verify fitment before purchase. Installation Notes The 70-1777 is designed to work with aftermarket radios from brands such as: Kenwood Sony Alpine Pioneer JVC Using a vehicle-specific harness helps reduce installation time, minimizes wiring mistakes, and preserves the original vehicle wiring for future service or resale value.