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Dear，Pls leave a massage to tell us what design (Color) do you want.thank you.

Description:Direct Connection via CD changer Port with CD quality soundControl music files from your car radio panel.Support USB Flash， SD Card and 3.5mm jack input.Building in high quality MP3/WMA decoderBuilding in Amplifier chipsNo signal interfere， No battery requiredSmart design and Easy to install and useBrand New and High QualityColor: As the picture showsSize: 150mm*110mm*40mmMaterial: PVC + CopperCompatible with:2000-2005 A22000-2005 Audi A21998-2006 A4/S41998-2006 Audi A4/S41998-2004 A6/S61998-2004 Audi A6/S61998-2002 A8/S81998-2002 Audi A8/S82000-2005 Allroad2000-2005 Audi Allroad2000-2006 TT2000-2006 Audi TTPackage Includes:1x Car Aux Adapter Cable