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

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

The next step in motorcycle performance, our M5 audio kits are the loudest and clearest audio systems we’ve created. Featuring simple plug-and-play installation and paired with freeway speed output all create the best in class on bike audio experience.


Plug-and-Play Design: Designed to work right out of the box. Everything is included to make for easy installation and all to ensure less time in the garage and more time out riding.

Full Throttle Output: Audio engineered to perform on the open road. Speakers and amplifiers specifically tuned and designed to not only overcome wind, road, and exhaust noise, but to give you that second to none audio experience on your bike.

RF3 (Rockford Factory Fit and Finish): Designed and engineered to match and compliment the factory fit and finish of your bike. These components are purpose built to the exact specifications to ensure the best-in-class fitment and look.

Element Ready™: 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.

Compatibility Chart: Please review below tab for fitment before purchasing.

Click to watch video H-D® M5 Audio Kits | Product Launch
Click to watch video H-D® M5 Audio Kits | Product Overview
Click to watch video  2014+ Ultra Stage-2 Installation (coming soon)
Click to download PDF H-D® M5 2014+ Amp Tuning Guide

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The HD14U-STG2 is a high-performance 4-speaker, 800-watt amplified audio system that includes the following:
 • (2) 6.5" fairing speakers
 • (2) 6.5" tour-pak® speakers
 • (1) 800W 4-channel amp
 • (1) amp installation kit

Upgrade this kit on air-cooled lowers by adding:
 • (1) 6.5” lower speakers (see below)

Upgrade this kit to STG3 by adding:
 • (1) 6x9” saddlebag speaker kit (see below)

Upgrade this kit to STG5 by adding:
 • (1) 6x9” saddlebag speaker kit (see below)
 • (1) 10” dual sub kit (see below)

You must flash your factory radio to use this kit. Ready to flash? Here’s a list of dealers that can flash your radio. Refer to our COMPATIBILITY chart to verify fitment before purchasing.


  • No drilling or cutting required
  • Plug and Play design for easy installation
  • Kits bolt to factory attachment points
  • Direct connect wiring harnesses for Harley-Davidson® models
  • Speakers are custom tuned so you can hear music over wind, road & exhaust noise at highway speed
  • TMS65: 6.5" 2-way Element Ready™ speaker with integrated phase-aligned 25 mm tweeter
  • M5-800X4: 800-watt 4-channel IPX6 Element Ready™ amplifier
  • RFK-HD14M5: Amp install kit for M5-800X4 on 2014+ Harley-Davidson® models
  • Y-adaptors included in amp install kit supports expansion of lower fairing, saddlebag, or Tour-Pak® speakers
  • T-harness integration supports front/rear fader control (requires "Rockford Fosgate 2014+ All Bikes" flash)
  • T-harness features loop-thru for Digital Signal Processor (DSR1 sold separately)
  • 90-degree harness included with amp install kit for Road Glide® installations
  • Factory Harley-Davidson® radio must be flashed to use this kit
  • Quality & Performance tested using proprietary RATS (Rockford Automated Testing System)
  • Klippel Verified certification program delivers the best possible loudspeakers
  • 2-Year Warranty
Corrosion Protection

Components are tested for salt spray corrosion resistance.

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Dust Resistant

Displays and motor structures are sealed tight so they look and sound as clear as possible ...

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Stainless Hardware

Stainless hardware is used to its natural resistance to corrosion and rusting. This ensures electrical connections ...

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Thermal Shock Resistant

Components are designed to withstand extreme temperature fluctuations ensuring they perform day-in and day-out.

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UV Inhibitor Materials

Centrex and ASA plastic materials are used for their UV radiation resistance and components are tested ...

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Vibration Resistant

Components are able to withstand shock and vibration conditions common with outdoor vehicles.

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Speaker Qty
Amplifier Type
Total Power
800 Watts
Grille/Trim Ring Included
Mounting Hardware
Included In The Box
(2 pr) TMS65
(1 ea) M5-800X4
(1 ea) RFK-HD14M5
Shipping Weight

The wiring harness included in this kit is designed to interface only with factory Harley-Davidson® radios. The factory Harley-Davidson® radio must be flashed or you will damage your speakers. Read advisory for more information.

This audio kit is only compatible with standard sized Harley-Davidson® ABS plastic saddlebags and lids. Stretched Harley-Davidson® ABS saddlebags not optimized for kits with subwoofers. Contact technical support for suggested harness brace.



YES Compatible! Model IS compatible


NOT Compatible! Model NOT compatible


Model NOT produced Model not produced this year



BOOM! Box 4.3 BOOM!™ Box 4.3 1


BOOM! Box 6.5GT BOOM!™ Box 6.5GT 1




H-D Power Lock H-D® Power Lock 2


H-D ABS Saddlebags H-D® ABS Saddlebags 3


H-D Stretched Saddlebags H-D® Stretched Saddlebags 4

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 Anniversary FLHTK
Ultra Limited Low FLHTKL
Ultra Limited Shrine Edition FLHTK

MODEL CHASSIS 2014 2015 2016 2017 2018 2019 2020 2021 2022
2019 CVO Ultra LimitedCVO Ultra Limited FLHTKSE
2018 CVO Limited 115th AnniversaryCVO Limited 115th Anniversary FLHTKSE
2017 CVO Pro Street BreakoutCVO Pro Street Breakout FXSE X X
2022 Road GlideCVO Road Glide® FLTRXSE X X X X X
2022 CVO Road Glide LimitedCVO Road Glide® Limited FLTRKSE X
2016 CVO Road Glide UltraCVO Road Glide® Ultra FLTRUSE
2014 CVO Softail BreakoutCVO Softail Breakout FXSBSE X
2022 CVO Street GlideCVO Street® Glide FLHXSE X X X X X X X X

MODEL CHASSIS 2014 2015 2016 2017 2018 2019 2020 2021 2022
2022 FreewheelerFreewheeler® FLRT X X X X X X X X
2022 Tri Glide UltraTri Glide® Ultra Classic® FLHTCUTG
2018 Tri Glide Ultra 115th Anniversary Tri Glide® Ultra Anniversary FLHTCUTG
2022 CVO Tri GlideCVO 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 6x9" 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.
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®, and Freewheeler® are Registered Trademark of Harley-Davidson USA, Inc.
— Boom!™ is a Trademark of Harley-Davidson USA, Inc.


Return Authorization

Contact the Authorized Rockford Fosgate Dealer you purchased this product from. If you need further assistance, call 1-800-669-9899 for Rockford Customer Service. You must obtain an RA# (Return Authorization number) to return any product to Rockford Fosgate. You are responsible for shipment of product to Rockford.


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