When it's time to get serious about the sound system on your Harley-Davidson Road King, Rockford Fosgate's RFK-HDRK amplifier installation kit is a great place to start.
With this kit, you can install Rockford Fosgate's TM400X4ad amplifier on a plate in the rear of the hard-shell bag lids on select 1998-2013 and 2014-up Road King models. You'll also get an amplifier wiring harness, an amp mounting carrier, saddlebag harness cutout templates, factory wiring integration harnesses, and a Bluetooth® audio module. And the wiring harness even includes extensions for lower fairing speakers, should you decide to add those to your Road King later.
The entire kit is designed for life on the road, with quality materials, rugged construction, and 100% oxygen free copper wiring.