Rockford Fosgate HD14U-STG2 2014+ Harley-Davidson Ultra Stage-2 Kit (Gen-3)

Motorcycle enthusiasts are always on the lookout for the latest and greatest in performance upgrades for their bikes like the HD14U-STG2 M5 audio kit, designed to provide riders with the best in-class on-bike audio experience. The M5 audio kits are engineered to be the loudest and clearest audio systems, featuring simple plug-and-play installation, and paired with freeway speed output, ensuring that you enjoy your ride with high-quality audio.

Plug-and-Play Design for Easy Installation

The M5 audio kit is designed to work right out of the box, with everything included to make for easy installation, ensuring less time in the garage and more time out riding. The kit features a plug-and-play design that requires no drilling or cutting. The kits bolt to factory attachment points, and direct connect wiring harnesses for Harley-Davidson® models are included.

Full Throttle Output for Superior Audio Experience

The audio is engineered to perform on the open road, with speakers and amplifiers specifically tuned and designed to not only overcome wind, road, and exhaust noise but also to give you that second-to-none audio experience on your bike. The HD14U-STG2 audio kit offers full-throttle output, making it perfect for long road trips and cross-country adventures.

RF3 (Rockford Factory Fit and Finish) for a Seamless Integration

The M5 audio kit is designed and engineered to match and complement the factory fit and finish of your bike. These components are purpose-built to exact specifications, ensuring the best-in-class fitment and look. The RF3 (Rockford Factory Fit and Finish) technology ensures that your kit blends in seamlessly with your bike’s original design, enhancing its visual appeal.

Element Ready™ for Durability and Longevity

The HD14U-STG2 audio kit is purpose-built for the harsh motorcycle environment. The speakers and amplifier are designed to stand up to water, dirt, UV, and motorcycle vibration, ensuring that your audio system will stand the test of time. Element Ready™ technology ensures that the kit is durable and long-lasting, giving you the best value for your investment.

Features and Benefits of M5 Audio Kits at a Glance

The M5 audio kit includes the TMS65: 6.5″ 2-way Element Ready™ speaker with an integrated phase-aligned 25 mm tweeter, M5-800X4: 800-watt 4-channel IPX6 Element Ready™ amplifier, and RFK-HD14M5: Amp install kit for M5-800X4 on 2014+ Harley-Davidson® models. The kit comes with Y-adaptors that support expansion of lower fairing, saddlebag, or Tour-Pak® speakers.

The T-harness integration supports front/rear fader control (requires “Rockford Fosgate 2014+ All Bikes” flash). The T-harness features loop-thru for Digital Signal Processor (DSR1 sold separately), and a 90-degree harness included with amp install kit for Road Glide® installations. The factory Harley-Davidson® radio must be flashed to use this kit.

Quality and Performance Guaranteed

The HD14U-STG2 audio kits are quality and performance tested using proprietary RATS (Rockford Automated Testing System). The Klippel Verified certification program delivers the best possible loudspeakers. The M5 audio kits come with a 2-year warranty, ensuring that you can enjoy high-quality audio on your bike for years to come.

Compatibility

HARLEY-DAVIDSON® TOURING
The HD14-STG2, HD14-STG3, and HD14-STG5 are better equipped for these models.

MODEL	CHASSIS	2014	2015	2016	2017	2018	2019	2020	2021	2022
Electra Glide® Revival	FLH	—	—	—	—	—	—	—	X	—
Electra Glide® Standard NR	FLHT	—	—	—	—	—	X	X	X	X
Road Glide®	FLTRX	—	X	X	X	X	X	X	X	X
Road Glide® ST	FLTRXST	—	—	—	—	—	—	—	—	X
Road Glide® Special	FLTRXS	—	X	X	X	X	X	X	X	X
Street Glide®	FLHX	X	X	X	X	X	X	X	X	X
Street Glide® ST	FLHXST	—	—	—	—	—	—	—	—	X
Street Glide® 115th Anniversary	FLHX	—	—	—	—	X	—	—	—	—
Street Glide® Special	FLHXS	X	X	X	X	X	X	X	X	X
Street Glide® Special 115th Anniversary	FLHXS	—	—	—	—	X	—	—	—	—

HARLEY-DAVIDSON® ROAD KING®
The HD14RK-STAGE2 is better equipped for these models.

MODEL	CHASSIS	2014	2015	2016	2017	2018	2019	2020	2021	2022
CVO Road King®	FLHRSE	X	—	—	—	—	—	—	—	—
CVO Softail Deluxe	FLSTNSE	X	X	—	—	—	—	—	—	—
Road King®	FLHR	—	X	X	X	X	X	X	X	X
Road King® Classic	FLHRC	X	X	X	X	X	X	—	—	—
Road King® Special	FLHRXS	—	—	—	X	X	X	X	X	X

HARLEY-DAVIDSON® ULTRA

MODEL	CHASSIS	2014	2015	2016	2017	2018	2019	2020	2021	2022
Road Glide® Limited	FLTRK	—	—	—	—	—	—	✔	✔	✔
Road Glide® Ultra	FLTRU	—	—	✔	✔	✔	✔	—	—	—
Electra Glide® Ultra Classic®	FLHTCU	✔	✔	✔	✔	✔	✔	—	—	—
Electra Glide® Ultra Classic® Twin-Cooled	FLHTCU	✔	✔	✔	—	—	—	—	—	—
Electra Glide® Ultra Classic® Low	FLHTCUL	—	✔	✔	—	—	—	—	—	—
Electra Glide® Ultra Classic® Low Twin-Cooled	FLHTCUL	—	✔	✔	—	—	—	—	—	—
Ultra Limited	FLHTK	✔	✔	✔	✔	✔	✔	✔	✔	✔
Ultra Limited 115th Anniversary	FLHTK	—	—	—	—	✔	—	—	—	—
Ultra Limited Low	FLHTKL	—	✔	✔	✔	✔	✔	—	—	—
Ultra Limited Shrine Edition	FLHTK	—	—	—	✔	✔	✔	✔	✔	✔

HARLEY-DAVIDSON® CVO
The HD14CVO-STG2 is better equipped for some incompatible models in this section.

MODEL	CHASSIS	2014	2015	2016	2017	2018	2019	2020	2021	2022
CVO Ultra Limited	FLHTKSE	✔	✔	✔	✔	✔	✔	✔	✔	—
CVO Limited 115th Anniversary	FLHTKSE	—	—	—	—	✔	—	—	—	—
CVO Pro Street Breakout	FXSE	—	—	X	X	—	—	—	—	—
CVO Road Glide®	FLTRXSE	—	—	—	—	X	X	X	XRF2	XRF2
CVO Road Glide® Limited	FLTRKSE	—	—	—	—	—	—	—	—	XRF1
CVO Road Glide® Ultra	FLTRUSE	—	✔	✔	—	—	—	—	—	—
CVO Softail Breakout	FXSBSE	X	—	—	—	—	—	—	—	—
CVO Street Glide®	FLHXSE	—	X	X	X	X	X	X	XRF2	XRF2

HARLEY-DAVIDSON® TRIKE

MODEL	CHASSIS	2014	2015	2016	2017	2018	2019	2020	2021	2022
Freewheeler®NR	FLRT	—	X	X	X	X	X	X	X	X
Tri Glide® Ultra Classic®	FLHTCUTG	✔	✔	✔	✔	✔	✔	✔	✔	✔
Tri Glide® Ultra 115th Anniversary	FLHTCUTG	—	—	—	—	✔	—	—	—	—
CVO Tri Glide®	FLHTCUTGSE	—	—	—	—	—	—	✔	✔	XRF1

GRAY TEXT indicates nomenclature used on some early models and later inherited.
1 Factory Radio from Harley-Davidson® must be flashed. Read advisory for more information.
2 H-D® Power Lock for touring luggage not compatible with 6×9″ bag-lid kit.
3 Saddlebags must be factory Harley-Davidson® ABS plastic to insure proper fitment with bag-lid and subwoofer kits. Fiberglass saddlebags and bag-lids not compatible.
4 Stretched Saddlebags not optimized for kits with subwoofers. Contact technical support for suggested harness brace.
5 Tour-Pak® must be detached in order to install and remove subwoofer enclosures.
NR No Radio equipped from factory. Motorcycle has storage pocket in lieu of infotainment unit.
RF1 RF Stage-1: Not upgradable. Factory equipped with “Harley-Davidson Audio Powered by Rockford Fosgate” 2-way speakers and saddlebag amplifier.
RF2 RF Stage-2: Not upgradable. Factory equipped with “Harley-Davidson Audio Powered by Rockford Fosgate” 3-way speakers and saddlebag amplifier.

— Harley-Davidson®, Road King®, Road Glide®, Street Glide®, Ultra Classic®, Tri Glide®, Freewheeler®, and Tour-Pak® are Registered Trademark of Harley-Davidson USA, Inc.
— Boom!™ is a Trademark of Harley-Davidson USA, Inc.