- The RFK-HD14 is an Amplifier Installation Kit, designed for use with select 2014 to current Harley-Davidson Road Glide & Street Glide Motorcycles
- The plug-and-play amp install kit includes a heatsink, bracket, and wiring harnesses needed to install the Rockford Fosgate Power Marine TM400X4ad 400-watt amplifier (amplifier sold separately)