{"product_id":"pac-ap4-ch21-amppro-car-stereo-advanced-amplifier-installation-audio-interface","title":"PAC AP4-CH21 AmpPRO Car Stereo Advanced Amplifier Installation Audio Interface","description":"\u003cspan style='font-family: \"Trebuchet MS\", Tahoma, sans-serif; margin: 0px; padding: 0px; vertical-align: top;'\u003e\u003cspan style=\"margin: 0px; padding: 0px; vertical-align: top; font-size: 14px;\"\u003e\u003cspan style=\"font-weight: 700; margin: 0px; padding: 0px; vertical-align: top;\"\u003eBRAND NEW\u003cbr style=\"margin: 0px; padding: 0px; vertical-align: top;\"\u003e\u003cbr style=\"margin: 0px; padding: 0px; vertical-align: top;\"\u003ePAC AP4-CH21\u003cbr style=\"margin: 0px; padding: 0px; vertical-align: top;\"\u003e\u003cbr style=\"margin: 0px; padding: 0px; vertical-align: top;\"\u003eAmpPRO Car Stereo Advanced Amplifier Installation Audio Interface\u003cbr style=\"margin: 0px; padding: 0px; vertical-align: top;\"\u003e\u003cbr style=\"margin: 0px; padding: 0px; vertical-align: top;\"\u003eOVERVIEW:\u003c\/span\u003e\u003cbr style=\"margin: 0px; padding: 0px; vertical-align: top;\"\u003e\u003cbr style=\"margin: 0px; padding: 0px; vertical-align: top;\"\u003eAmpPRO simplifies the installation of upgraded amplifiers in data-bus controlled sound systems. With AmpPRO, you can improve audio performance while keeping an original radio’s fit, finish and features.\u003cbr style=\"margin: 0px; padding: 0px; vertical-align: top;\"\u003e\u003cbr style=\"margin: 0px; padding: 0px; vertical-align: top;\"\u003e\u003cspan style=\"font-weight: 700; margin: 0px; padding: 0px; vertical-align: top;\"\u003eKEY FEATURES:\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cbr style='color: rgb(30, 118, 199); font-family: \"Trebuchet MS\", Tahoma, sans-serif; margin: 0px; padding: 0px; vertical-align: top;'\u003e\u003cspan style='color: rgb(30, 118, 199); font-family: \"Trebuchet MS\", Tahoma, sans-serif;'\u003e \u003c\/span\u003e\u003cul style='margin-right: 0px; margin-bottom: 0px; margin-left: 0px; color: rgb(30, 118, 199); font-family: \"Trebuchet MS\", Tahoma, sans-serif; padding: 0px 0px 15px; vertical-align: top; list-style-type: none;'\u003e\n\u003cli style='margin: 0px; padding: 0px 0px 5px 15px; vertical-align: top; text-align: left; line-height: normal; color: rgb(0, 0, 0); background: url(\"images\/x-tbul.png\") 0px -2px no-repeat transparent;'\u003e\u003cspan style=\"margin: 0px; padding: 0px; vertical-align: top;\"\u003e\u003cspan style=\"margin: 0px; padding: 0px; vertical-align: top; font-size: 14px;\"\u003e\u003cspan style=\"font-weight: 700; margin: 0px; padding: 0px; vertical-align: top;\"\u003eVariable volume, fade, balance, bass, mid and treble audio settings\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style='margin: 0px; padding: 0px 0px 5px 15px; vertical-align: top; text-align: left; line-height: normal; color: rgb(0, 0, 0); background: url(\"images\/x-tbul.png\") 0px -2px no-repeat transparent;'\u003e\u003cspan style=\"margin: 0px; padding: 0px; vertical-align: top;\"\u003e\u003cspan style=\"margin: 0px; padding: 0px; vertical-align: top; font-size: 14px;\"\u003e\u003cspan style=\"font-weight: 700; margin: 0px; padding: 0px; vertical-align: top;\"\u003eFront, rear, sub preamp outputs (5 volt RMS)\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style='margin: 0px; padding: 0px 0px 5px 15px; vertical-align: top; text-align: left; line-height: normal; color: rgb(0, 0, 0); background: url(\"images\/x-tbul.png\") 0px -2px no-repeat transparent;'\u003e\u003cspan style=\"margin: 0px; padding: 0px; vertical-align: top;\"\u003e\u003cspan style=\"margin: 0px; padding: 0px; vertical-align: top; font-size: 14px;\"\u003e\u003cspan style=\"font-weight: 700; margin: 0px; padding: 0px; vertical-align: top;\"\u003eProvides flat audio output for a solid audio foundation\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style='margin: 0px; padding: 0px 0px 5px 15px; vertical-align: top; text-align: left; line-height: normal; color: rgb(0, 0, 0); background: url(\"images\/x-tbul.png\") 0px -2px no-repeat transparent;'\u003e\u003cspan style=\"margin: 0px; padding: 0px; vertical-align: top;\"\u003e\u003cspan style=\"margin: 0px; padding: 0px; vertical-align: top; font-size: 14px;\"\u003e\u003cspan style=\"font-weight: 700; margin: 0px; padding: 0px; vertical-align: top;\"\u003eCustomized OE bass, mid and treble center frequency selection\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style='margin: 0px; padding: 0px 0px 5px 15px; vertical-align: top; text-align: left; line-height: normal; color: rgb(0, 0, 0); background: url(\"images\/x-tbul.png\") 0px -2px no-repeat transparent;'\u003e\u003cspan style=\"margin: 0px; padding: 0px; vertical-align: top;\"\u003e\u003cspan style=\"margin: 0px; padding: 0px; vertical-align: top; font-size: 14px;\"\u003e\u003cspan style=\"font-weight: 700; margin: 0px; padding: 0px; vertical-align: top;\"\u003eRetains uConnect, Bluetooth audio and all warning chimes\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style='margin: 0px; padding: 0px 0px 5px 15px; vertical-align: top; text-align: left; line-height: normal; color: rgb(0, 0, 0); background: url(\"images\/x-tbul.png\") 0px -2px no-repeat transparent;'\u003e\u003cspan style=\"margin: 0px; padding: 0px; vertical-align: top;\"\u003e\u003cspan style=\"margin: 0px; padding: 0px; vertical-align: top; font-size: 14px;\"\u003e\u003cspan style=\"font-weight: 700; margin: 0px; padding: 0px; vertical-align: top;\"\u003ePlug \u0026amp; play installation\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style='margin: 0px; padding: 0px 0px 5px 15px; vertical-align: top; text-align: left; line-height: normal; color: rgb(0, 0, 0); background: url(\"images\/x-tbul.png\") 0px -2px no-repeat transparent;'\u003e\u003cspan style=\"margin: 0px; padding: 0px; vertical-align: top;\"\u003e\u003cspan style=\"margin: 0px; padding: 0px; vertical-align: top; font-size: 14px;\"\u003e\u003cspan style=\"font-weight: 700; margin: 0px; padding: 0px; vertical-align: top;\"\u003eSub level controller\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style='margin: 0px; padding: 0px 0px 5px 15px; vertical-align: top; text-align: left; line-height: normal; color: rgb(0, 0, 0); background: url(\"images\/x-tbul.png\") 0px -2px no-repeat transparent;'\u003e\u003cspan style=\"margin: 0px; padding: 0px; vertical-align: top;\"\u003e\u003cspan style=\"margin: 0px; padding: 0px; vertical-align: top; font-size: 14px;\"\u003e\u003cspan style=\"font-weight: 700; margin: 0px; padding: 0px; vertical-align: top;\"\u003eOptional TOSLINK optical output (APA-TOS1 sold separately)\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style='margin: 0px; padding: 0px 0px 5px 15px; vertical-align: top; text-align: left; line-height: normal; color: rgb(0, 0, 0); background: url(\"images\/x-tbul.png\") 0px -2px no-repeat transparent;'\u003e\u003cspan style=\"margin: 0px; padding: 0px; vertical-align: top;\"\u003e\u003cspan style=\"margin: 0px; padding: 0px; vertical-align: top; font-size: 14px;\"\u003e\u003cspan style=\"font-weight: 700; margin: 0px; padding: 0px; vertical-align: top;\"\u003eSimplifies amplifier installation\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style='margin: 0px; padding: 0px 0px 5px 15px; vertical-align: top; text-align: left; line-height: normal; color: rgb(0, 0, 0); background: url(\"images\/x-tbul.png\") 0px -2px no-repeat transparent;'\u003e\u003cspan style=\"margin: 0px; padding: 0px; vertical-align: top;\"\u003e\u003cspan style=\"margin: 0px; padding: 0px; vertical-align: top; font-size: 14px;\"\u003e\u003cspan style=\"font-weight: 700; margin: 0px; padding: 0px; vertical-align: top;\"\u003ePrevents need for summing and DSP devices\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style='margin: 0px; padding: 0px 0px 5px 15px; vertical-align: top; text-align: left; line-height: normal; color: rgb(0, 0, 0); background: url(\"images\/x-tbul.png\") 0px -2px no-repeat transparent;'\u003e\u003cspan style=\"margin: 0px; padding: 0px; vertical-align: top;\"\u003e\u003cspan style=\"margin: 0px; padding: 0px; vertical-align: top; font-size: 14px;\"\u003e\u003cspan style=\"font-weight: 700; margin: 0px; padding: 0px; vertical-align: top;\"\u003eProvides factory sound system upgrade solution\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cspan style='font-family: \"Trebuchet MS\", Tahoma, sans-serif; margin: 0px; padding: 0px; vertical-align: top;'\u003e\u003cspan style=\"margin: 0px; padding: 0px; vertical-align: top; font-size: 14px;\"\u003e\u003cspan style=\"font-weight: 700; margin: 0px; padding: 0px; vertical-align: top;\"\u003eCOMPATIBILITY NOTES:\u003c\/span\u003e\u003cbr style=\"margin: 0px; padding: 0px; vertical-align: top;\"\u003e\u003cbr style=\"margin: 0px; padding: 0px; vertical-align: top;\"\u003eThis interface is only compatible in vehicles equipped with a data-bus controlled premium sound system. To verify compatibility, look for an Alpine, Beats, or Harmon Kardon badge on the door speakers, center speaker, or factory subwoofer. If none of these brands are shown, check for the presence of a center speaker or subwoofer.\u003c\/span\u003e\u003c\/span\u003e","brand":"PAC","offers":[{"title":"Default Title","offer_id":45973815066862,"sku":"AP4-CH21","price":499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2356\/1969\/files\/dad6fa25-cd37-4998-9d7d-38853587df71.jpg?v=1746819689","url":"https:\/\/thecybervalue.com\/products\/pac-ap4-ch21-amppro-car-stereo-advanced-amplifier-installation-audio-interface","provider":"Cybervalue","version":"1.0","type":"link"}