Rockford Fosgate GNRL-STAGE4 Stage 4 audio upgrade kit 400 Watt Stereo, Front Lower Speaker, Rear Speaker, and Subwoofer Kit For Select Polaris GENERAL™ Models
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What's Inside?
- • PMX-2
- • RFGNRL-PMXDK
- • RFGNRL-FSE
- • RM1652B
- • RM110D2B
- • TM400X4AD
- • RFGNRL-FWE
- • RFGNRL-K8
- • RM1652W-MB
- • PM-CL3B
- • RFX3-RSW16
- • Owner's Manual
Full-System Sound Domination for Your Polaris General
If you’re ready to turn your Polaris General into a true off-road sound machine, the Rockford Fosgate GNRL-STAGE4 Stage 4 Audio Upgrade Kit brings everything together in one serious package. This isn’t just upgraded audio, it’s a fully integrated command system built for high-output performance in rough terrain. It combines a digital media receiver, multi-channel amplification, full-range speakers, and a dedicated subwoofer into one unified plug-and-play setup so everything works together right from the start without complicated guesswork.
Smart Receiver Tech Built for Real Outdoor Use
At the center of the system is the PMX-2 digital marine receiver, designed to keep your music going no matter where the trail takes you. You get Bluetooth streaming, USB playback, AM/FM, and weather band tuning, all displayed on a high-visibility TFT screen that stays readable even under direct sun. It’s built for abuse too, with resistance to UV exposure, dust, vibration, and moisture so it keeps performing in the same harsh environments you actually ride in.
Clean Install That Feels Factory From Day One
One of the biggest advantages of this kit is how cleanly it integrates into your vehicle. The direct-fit dash bezel and vehicle-specific wiring harness are designed for factory mounting points, which means less cutting and far less modification during installation. It’s a true plug-and-play architecture that makes the upgrade feel like it was part of the original build, not an aftermarket add-on bolted in later.
Big Power, Clear Sound, and Serious Bass Control
Performance is where the GNRL-STAGE4 really comes alive. High-efficiency Class-AD amplification delivers strong, clean output with low distortion and smart thermal control, so the system stays consistent even when pushed hard. The full-range speaker setup uses marine-grade front and rear assemblies with precision tweeters and mineral-filled polypropylene woofers for clear mids and crisp highs. Add in the sealed 10-inch subwoofer enclosure tuned for vehicle fitment, and you get deep, controlled bass that hits hard without eating up cabin space.
Built for the Long Haul in Any Terrain
This system is engineered to survive the same conditions you and your machine do. With UV-resistant materials, corrosion protection, and vibration-tested construction, it’s made for long-term reliability in mud, heat, rain, and constant trail abuse. Everything is designed to keep performing under pressure while maintaining clean sound and stable output, giving your Polaris General a full audio upgrade that feels just as tough as the ride itself.
Frequently Asked Questions (FAQ)
- • Why does the GNRL-STAGE4 bass sound weaker than expected?
Some users may notice that the bass does not have the impact they expected after installation. Before changing components, check the amplifier tuning, subwoofer wiring, and polarity. Rockford Fosgate specifically provides a tuning guide for the GNRL-STAGE4.
- • Why is there no radio signal after installing the system?
The GNRL-STAGE4 does not include an antenna. If AM/FM reception is missing, an appropriate antenna needs to be purchased and connected separately.
- • Why doesn't the dash kit fit my Polaris General?
A major fitment issue is the factory Ride Command system. Rockford Fosgate lists Polaris General Ride Command models as incompatible because Ride Command prevents the dash kit from being installed correctly.
- • Why can't I install the subwoofer with my General's heater?
The subwoofer enclosure occupies the area required for certain factory heater configurations. Rockford Fosgate's compatibility information specifically lists the General heater option as incompatible with the kit.
- • Why does the installation take longer than I expected?
Although the system uses direct-connect wiring and is designed as a plug-and-play package, Rockford Fosgate estimates roughly 3 hours for installation. Routing wires, mounting the enclosures, and accessing factory panels can make the actual job longer for a first-time installer.
- • Why does the system have less volume than I expected?
A UTV audio system can sound very different depending on amplifier gain, source level, speaker positioning, and tuning. Rockford Fosgate provides a dedicated General Stage 3/Stage 4 tuning guide, so incorrect gain or setup is worth checking before assuming the amplifier is underpowered.
- • Why do I hear engine or electrical noise through the speakers?
Incorrect grounding or routing signal cables alongside power wiring can introduce unwanted noise. The GNRL-STAGE4 troubleshooting documentation recommends checking amplifier grounds and separating signal-carrying wires from power and ground cables.
- • Why did the amplifier go into protection mode?
A shorted speaker wire, incorrect speaker connection, or unsuitable speaker impedance can trigger amplifier protection. Checking every speaker connection and testing the wiring for shorts is recommended before replacing the amplifier.
- • Why do the installation instructions seem confusing?
One verified GNRL-STAGE4 buyer reported that the installation itself was fairly simple but felt the written directions could be better; they found the manufacturer's YouTube installation video easier to follow.
- • Why are some General owners unsure about compatibility before ordering?
The GNRL-STAGE4 has several vehicle-specific exceptions involving model year, seat configuration, Ride Command, rear storage racks, and factory options. Checking the compatibility chart before purchasing can prevent an expensive installation problem later.
Features:
- High-Fidelity Off-Road Audio Command System for Polaris General: Rockford Fosgate GNRL-STAGE4 delivers a fully integrated Stage 4 audio solution engineered for immersive, high-output performance in demanding off-road environments.
- Complete System Integration: Combines digital media receiver, multi-channel amplification, full-range speaker system, and dedicated subwoofer into a unified plug-and-play architecture for seamless OEM-style installation.
- Advanced PMX-2 Digital Marine Receiver: Equipped with Bluetooth streaming, USB playback, AM/FM and weather band tuning, plus high-visibility TFT display designed for durability under UV, dust, vibration, and moisture exposure.
- Direct-Fit Dash and Harness System: Includes a vehicle-specific dash bezel and wiring harness engineered for factory mounting points, enabling clean installation with minimal drilling or modification.
- High-Efficiency Class-AD Amplification: Delivers clean, high-output power with optimized thermal management and low-distortion performance for consistent audio delivery under heavy load conditions.
- Full-Range Speaker Configuration: Utilizes marine-grade front and rear speaker assemblies with precision tweeters and mineral-filled polypropylene woofers for balanced clarity and strong midrange projection.
- Dedicated Subwoofer Bass System: Integrates a sealed, vehicle-matched 10-inch subwoofer enclosure designed to enhance low-frequency impact while maintaining cabin space efficiency and structural fitment.
- Extreme-Duty Construction: Engineered with UV-resistant, corrosion-protected, and vibration-tested components to ensure long-term reliability in harsh terrain, weather exposure, and continuous high-performance use.
Specifications:
- Class AD amp technology
- 4-ohm/2-ohm multi-impedance constant power
- conformal-coated circuit board — suitable for power sports and marine applications
- marine-grade stainless steel hardware
- twin cooling fans and real-time thermal sensing
- hidden top-mount control panel
- CLEAN set-up technology with LED input/output indicators
- speaker-level inputs (speaker wire to RCA adapter required)
- variable low- and high-pass filters (50-250 Hz at 12 dB/octave)
- tone controls: 0-18 dB at 45 Hz; 0-14 dB at 12,000 Hz
- frequency response: 20-20,000 Hz
- fuse rating: 60A x 1 (fuse not included)
- dimensions: 8-5/8"D x 1-11/16"H x 4-5/16"W
- requires 8-gauge power and ground cable
- UPC: 780687352080
- Weight: 30
- Authorized Internet Dealer
Warranty: 2 Year(s) Warranty.
This item is accompanied by a manufacturer's warranty. If it is found to be defective, it may be returned to OnlineCarstereo.com for replacement within 2 Year(s) from the original date of purchase with proper return authorization.