Rockford Fosgate RFRNGR-K8 Polaris Ranger Amp Install Kit

The Rockford Fosgate RFRNGR-K8 is a vehicle-specific amplifier installation kit for select Polaris RANGER models. It combines a mounting bracket with a pre-configured wiring harness to support a cleaner amplifier addition than assembling separate wiring and mounting parts. It is intended for RANGER owners building a Rockford Fosgate-based UTV audio system.

This kit does not amplify or process audio itself; it provides the mounting and wiring infrastructure for a compatible amplifier. The harness includes pre-cut, loomed power, ground, and speaker-wire runs for a more organized installation. Its plug-and-play connections are designed around Rockford Fosgate RANGER-specific audio components.

The RFRNGR-K8 is designed for use with Rockford Fosgate Power T400X4ad and TM400X4ad compact-chassis amplifiers. The bracket places the amplifier under the dash, above the steering column, on applicable RANGER configurations. This location keeps the installation integrated with the vehicle's existing structure.

For system upgrades, the kit works alongside Rockford Fosgate RANGER-specific dash kits and speaker or subwoofer enclosures. It provides the power, ground, input/output, and speaker-harness routing needed to connect the amplifier into the system. The result is a purpose-built foundation for adding amplified sound to a compatible RANGER.

The mounting approach uses OEM vehicle mounting locations rather than requiring a custom bracket solution. Rockford Fosgate specifies the kit for both Crew and non-Crew applications within its applicable RANGER fitment group. It is also listed as compatible with the Polaris heater and defrost option.

Key Features

• RANGER-Specific Harness: Plug-and-play wiring supports Rockford Fosgate RANGER audio components.
• Compact-Amp Fitment: Designed for T400X4ad and TM400X4ad amplifiers.
• OEM-Mount Installation: Bracket uses factory vehicle mounting locations.
• Pre-Cut Wiring: Power, ground, and speaker wiring is pre-cut.
• Loomed Harnesses: Bundled wire routing promotes an organized installation.
• Heater Compatibility: Works with the Polaris heater and defrost option.

Design & Installation

The kit includes a black steel amplifier bracket, a vehicle-specific wiring harness, mounting screws, cable ties, and instructions. Its bracket is shaped to install beneath the dash above the steering column on applicable vehicles. The harness is supplied with pre-cut and loomed power, ground, and speaker-wire sections to reduce separate wiring preparation.

Installation involves removing the top dash panel, loosening the steering-column-support hardware, sliding the bracket into position, and securing the compatible amplifier with the supplied screws. Connect the amplifier's input, output, and power/ground harnesses before mounting it to the bracket, then connect power and ground at the battery and inputs from the radio. Confirm exact vehicle fitment and follow the included instructions before installation.