Metra Door Speaker adapters for Chevrolet Silverado 1500 / GMC Sierra 2007-2014 Speaker install Adapter for Rear/front door Speaker Location for Extended Cab ONLY Break-away tab design allows flexibility for installation of aftermarket 6in to 6 3/4in speakers in the factory rear speaker locations Sold as a pair Chevrolet (extended cab, rear door) Silverado 2500/3500 2014 Silverado 2008-2013 Silverado (new body) 2007 GMC (extended cab, rear door) Sierra 2500/3500 2014 Sierra 2008-2013 Sierra (new body) 2007 Cerwin Vega H7653 680W Max (120W RMS) 6.5" HED Series 3-Way Coaxial Speakers 6.5" HED Series 3-Way Car Speakers Power Handling: Peak: 680 watts per pair / 340 watts each RMS: 120 watts per pair / 60 watts each Graphite-injected reinforced polypropylene cone Rubber surround 1" balanced dome PEI black polypropylene tweeter 1/2" Balanced dome PEI polypropylene supertweeter Voice coil size and type Top-mount Depth: 2.24" Cutout Dimensions: 5.7" 4 ohms impedance Frequency Response: 55 - 20,000 Hz