We at Metra always strive to listen to our customers. You have told us to do a better job at telling the Metra story. For over 70 years, Metra has maintained its cutting edge by paying attention to our marketplace and innovating products to fit the needs of the installer. We are the "Installer's Choice" because we are installers. We design our products to be easy to use and easy on the eyes. If you can see a Metra product, then we haven't done our job. Metra wires harnesses are designed with the same philosophy in mind. Their longer length for ease of installation and thicker OEM cables with OEM connectors make for a mighty install. Metra's WM-FD2 Radio wire harness is used to connect an after market radio to the OEM radio harness In select Ford/ Lincoln/ Mercury/ Mazda from 1989-2008. Harness retains factory premium sound in select models. Metra WM-FD2 Radio Wire Harness for Select Ford, Lincoln, Mercury, Mazda Models * Comes with multiply harnesses to fit a wide variety of Ford, Lincoln, Mercury, and Mazda models from 1998-2008 * Plugs in the OEM radio wire harness and connects to an after-market radio * Provides power and ground from the OEM radio wire harness and connects to an after-market radio * Provides audio for 4 speakers and works on premium models