Designed for fairings with the stock HK radio Full range class D amplifier that has 100W RMS per channel times two channels (200W total) 2 OHM load at 14.4 VDC Mounts to the top of the custom made stainless steel bracket system, which has slots in the bottom section to properly relocate two of the HD CB, MP3, or XM satellite radio modules, if installed All instructions and necessary hardware are included in the kit, along with custom made plug-n-play wiring harnesses, top quality heavy gauge power/ground wires that are used for the fused battery connection, and direct RCA-RCA input adapters Amplifier measures 6-1/2" L x 4-3/4" W x 1-3/4" T; ; * Will not fit 2011-13 Road Glide fairings