["Description:\nbrand new and high quality\nFeature:\nConverts car stereo speaker outputs to RCA outputs.\nAllows the addition of 2 or 4 channel amplifiers to most stereos without RCA outputs.\nAllows the addition of amplifier and subwoofer to existing factory systems.\nAdjustable level matching from 0-2 volts.\nFor car stereos up to 80 watts.\n\nSpecifications:\nItem Type: Speaker level converter\nMaterial: plastic+electronic components\nSize: 86x46mm/3.3x1.8in\nColor: As shown\nQuantity: 1 PC\n\nInstructions:\nWhite Connect to left speaker positive\nConnected to the left speaker negative\nGray Connect to right speaker\nGray black Connect to the right speaker negative\nPure black ground wire\nRed Connect to 12V power supply (can be connected in parallel with the 12V power cable of the subwoofer)\nConnect the blue control line REM (connect the REM terminal of the subwoofer)\n\nNote:\nTransition: 1cm=10mm=0.39inch\nPlease allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.\nDue to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!\n\nPackage Includes:\n1 x Speaker level converter\n1 x Cable"]