-***Specifications:***-Hidden Amplified Antenna Kit-Designed for optimum AM/FM/WB reception covering all broadcast radio-102 Inch cable length for easy installation-Comes with velcro mounting so you can adjust the antenna for best reception-It simply mounts to the inside of any non metal location and plugs into any standard AM/FM antenna jack-Requires a switched 12-volt power source-Instructions: Included-***Installation:*** -This amplified antenna works well for radio installations where a conventional antenna is a challenge to mount or you don't want to drill a hole. Great for hidden stereo installs and clean antenna-less fenders. -It simply mounts to the inside of any non metal location and plugs into any standard AM/FM antenna jack. -Requires a switched 12-volt power source- Compatible with Harley Davidson XL Sportster 1200 Custom