METRA 70-5702 8-Way Sub Plug with RCA for Ford Lincoln 1998-2005

8-Way Sub Plug for Ford Lincoln

The Metra 70-5702 is an 8-pin subwoofer plug designed for select 1998-2005 Ford and Lincoln vehicles. It connects to the factory premium subwoofer system when installing an aftermarket radio. The harness works with the Metra 70-1771 interface to retain the original equipment subwoofer without cutting any factory wiring.

Sustained Operation with Factory Wiring

The plug maintains a continuous signal path between the aftermarket head unit and the vehicle's factory subwoofer amplifier. Because it uses the original connectors, the electrical load and impedance remain unchanged during extended playback. No splicing or soldering is required, so the connection stays mechanically stable under vibration and temperature cycles typical in automotive use.

OEM Connector Limits and Compatibility

The 8-pin configuration matches the specific Ford premium subwoofer plug used across the listed model years. It cannot adapt vehicles that lack the factory subwoofer system or that use a different pin count. Installers needing to retain steering-wheel controls or other factory features will require additional adapters not included with this harness.