2005 Mercury Mariner Plug-N-Tow (R) Vehicle Wiring Harness 2005 Mercury Mariner - Plug-N-Tow (R) Vehicle Wiring Harness. Plug-N-Tow (R) Wiring Connectors provide a no-hassle, quick and easy way to wire your vehicle. Each vehicle specific connector is pre-wired and uses original OEM connectors for watertight protection, a guaranteed fit, and a great look;4.3/5(32)Category: Custom Fit Vehicle Wiring 2005 Mercury Mariner OE Wiring Harnesses & Stereo Adapters Mercury Mariner 2005, Aftermarket Radio Wiring Harness by Scosche®, with OEM Plug. Up yourself and your tunes over the factory installation with top-of-the-line audio products from Scosche. Built for just about any kind of music..