Rockford Fosgate RZR14-K4 4 AWG RZR Amplifier Install Kit

The Rockford Fosgate RZR14-K4 is a vehicle-specific 4 AWG amplifier installation kit for select Polaris RZR models. It provides the primary power, ground, speaker, and mounting provisions needed when adding a compatible Rockford Fosgate amplifier. The kit is intended for 2-seat and 4-seat RZR applications that match the manufacturer compatibility chart.

This kit helps create a cleaner amplifier upgrade than piecing together universal wiring and fabricated brackets. Its pre-cut, loomed harnesses are designed to simplify routing of power, ground, and front-speaker connections. The plug-and-play approach is intended to avoid cutting or drilling the vehicle during installation.

The RZR14-K4 is designed around the Rockford Fosgate M5-1500X5 five-channel amplifier, sold separately. Its 4-gauge power and ground harness supports the electrical connection required for that amplifier application. Because this is an installation kit rather than an audio component, it does not add sound output on its own.

Color Optix Ready wiring is included to support compatible Rockford Fosgate lighting-equipped system components. The harness layout is designed for a tidy, integrated installation beneath the dash. This makes the kit a suitable foundation for a staged RZR audio build using compatible Rockford Fosgate equipment.

Two amplifier mounting plates are included to accommodate the applicable RZR mounting arrangement for 2014-2018 and 2019+ vehicles. The brackets attach at factory mounting points underneath the dash when used on a compatible vehicle. Confirm exact vehicle fitment before purchase, especially when selecting equipment for a complete audio system.

Key Features

• 4 AWG Power Harness: Provides dedicated power and ground wiring for the intended amplifier installation.
• M5-1500X5 Compatibility: Includes mounting provisions designed for Rockford Fosgate's M5-1500X5 five-channel amplifier.
• Pre-Loomed Wiring: Pre-cut power, ground, and speaker wiring helps streamline routing and setup.
• Color Optix Ready: Includes wiring provisions for compatible Color Optix lighting-equipped components.
• Two Mounting Plates: Supplies separate brackets for applicable 2014-2018 and 2019+ RZR configurations.
• Factory-Point Installation: Mounts beneath the dash using factory mounting locations on compatible vehicles.

Design & Installation

The RZR14-K4 combines a 4 AWG power-and-ground harness with purpose-built amplifier mounting plates, hardware, and zip ties. Its harnesses are pre-cut and loomed for an organized installation path, while the included waterproof fuse supports the power connection. The under-dash bracket design is intended to position the amplifier at the vehicle's factory mounting points.

Use this kit only after confirming the RZR model, seating configuration, and year-specific fitment. Select the included mounting plate appropriate for the vehicle generation, then install the compatible M5-1500X5 amplifier separately using the supplied mounting screws. The kit is designed for direct installation without cutting or drilling on compatible applications.