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Compatible with gmc sierra 1500 crew cab 2014-2018 factory speakerSierra 1500 a400 c69 C69 sierra speakerSan jose client upgrades gmc sierra stereo system.
Gmc sierra 1500 regular cab 2014-2018 premium speaker upgrade c69 & haFits gmc sierra 2500hd 3500hd regular 14-18 factory speaker upgrade r69 .
