Rockford Fosgate HD14-STG3 6.5"/6x9" Harley Audio Kit

The Rockford Fosgate HD14-STG3 is a four-speaker amplified audio upgrade package for select 2014-2023 Harley-Davidson Street Glide and Road Glide motorcycles. It combines front fairing speakers, rear saddlebag-lid speakers, a four-channel amplifier, and a vehicle-specific installation kit. The system is intended for riders who want a more substantial audio solution than factory speakers alone.

Its front stage uses a pair of TMS65 6.5-inch two-way speakers, while the rear stage uses the TMS69BL14 6x9-inch saddlebag speaker retrofit kit. Each speaker set is designed for the motorcycle environment and uses integrated 25 mm tweeters for full-range playback. The front-and-rear layout helps distribute sound across the motorcycle rather than relying only on fairing-mounted speakers.

Power comes from the included M5-800X4, a four-channel Element Ready amplifier with an IPX6 water-intrusion rating. The amplifier provides four dedicated channels for the supplied speaker system and includes adjustable high-pass and low-pass crossover controls. Its C.L.E.A.N. setup system uses clip indicators to help establish appropriate gain settings.

The supplied RFK-HD14M5 installation kit is tailored to compatible Harley-Davidson touring motorcycles and includes direct-connect wiring provisions. The kit uses 8 AWG power and ground wiring, a 60-amp MAXI fuse, and 16 AWG speaker wiring. A 90-degree harness is included for Road Glide installations, while Y-adapters support future compatible speaker expansion.

This package is a practical foundation for a staged Harley-Davidson audio build because it includes the amplification and rear-speaker hardware needed for a four-speaker layout. The bag-lid speakers are intended for factory Harley-Davidson ABS plastic saddlebags and require cutting the bag lids with the included templates. Factory Harley-Davidson radios must be flashed for use with this kit, so fitment and radio configuration should be confirmed before installation.

Key Features

• Four-Speaker System: Combines two 6.5-inch fairing speakers and two 6x9-inch saddlebag speakers.
• M5-800X4 Amplifier: Supplies four channels of dedicated amplification for the included speakers.
• Element Ready Construction: Components are engineered for water, UV, vibration, and outdoor exposure.
• IPX6 Amplifier Rating: Helps protect the amplifier against powerful water spray.
• Vehicle-Specific Wiring: Direct-connect harnesses simplify integration on compatible Harley-Davidson motorcycles.
• Saddlebag Retrofit Hardware: Includes cutout templates, mounting parts, grilles, and saddlebag harnesses.

Design & Installation

The HD14-STG3 combines Rockford Fosgate's motorcycle-specific TMS speakers with an Element Ready M5-series amplifier. The TMS65 speakers use integrated 25 mm dome tweeters, while the TMS69BL14 rear speakers use a 25 mm film-dome neodymium tweeter, polymer-frame construction, and a sealed sandwich-clamping mounting arrangement. The M5-800X4 uses a sealed, Element Ready chassis with conformal-coated circuit boards and molded wiring connectors.

Installation uses the included RFK-HD14M5 mounting and wiring hardware, with provisions for Bat Wing and Shark Nose fairings. The rear speaker installation requires cutting factory ABS plastic saddlebag lids using the supplied templates; fiberglass lids and Harley-Davidson Power Lock-equipped luggage are not compatible. Have the factory radio flashed as required, use the specified tuning guidance, and verify exact motorcycle fitment before purchasing or beginning installation.