<p><b>Simply tap into the plug behind the rearview mirror for 12v and ground. </b></p> <p><b>The 12v Wire has an in-line fuse for added protection.</b></p> <p><b>Compatible with all cars that have powered rearview mirrors, such as : </b></p> <p>Toyota Tacoma, Camry</p> <p>Ford F-150</p> <p>Buick Regal Sportback</p> <p>BMW</p> <p>GMC</p> <p>Lexus</p> <p>Audi</p> <p>Acura MDX</p> <p>Ram 1500 Crew cab</p>