This Package Includes the Following Items:1 x Harmony Audio HA-C69 Car Stereo Carbon 6x9" Replacement 500W Speakers & Grills1 x Buick Cadillac Chevy GMC Oldsmobile Pontiac Factory Speaker Replacement Harnesss1 x Harmony Audio HA-823006 2005-Up General Motors Multi 6 to 6.75 Inch Speaker Adaptor PlateHarmony Audio HA-C69 Car Stereo Carbon 6x9" Replacement 500W Speakers & Grills: Specifications:6x9" Carbon Series 2-Way Car Speaker PairPower Handling: Peak: 500 wattsRMS: 200 wattsSensitivity: 93dBFrequency Response: 35Hz-21kHzMounting Depth: 3-3/8"Mounting Cutout Diameter: 6-1/8 Inches x 8-11/16 InchesTweeter Size: 1"Single 4 OhmFeatures:Direct Fit OEM Replacement SizeFiberglass ConeButyl Rubber Surround1" Silk Dome TweeterPassive Tweeter Crossover Steel BasketFerrite MagnetKapton Former Material