

Rockford Fosgate RFGNRL-K8 Polaris General Amplifier Wiring Kit
- Vehicle-specific Polaris GENERAL amplifier wiring kit
- Works with 2-seat and 4-seat models
- Pre-cut, loomed power and speaker harnesses
- Uses 8-gauge copper power and ground wire
- Compatible with T400X4ad and TM400X4ad
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The Rockford Fosgate RFGNRL-K8 is a vehicle-specific amplifier wiring and mounting kit for select Polaris GENERAL models. It provides the wiring infrastructure needed to add a compatible compact-chassis Rockford Fosgate amplifier to a GENERAL audio system. The kit is designed for both 2-seat and 4-seat GENERAL configurations.
Built for owners assembling a Rockford Fosgate GENERAL-specific audio upgrade, this kit replaces the guesswork of measuring, routing, and terminating universal wire. Pre-cut, loomed power, ground, and speaker harnesses are included for a more organized installation path. It is intended to integrate with Rockford Fosgate GENERAL enclosures and dash kits.
As an installation accessory, the RFGNRL-K8 does not produce sound on its own. Instead, it supplies the electrical connections required by a compatible amplifier, helping support a properly integrated amplified speaker or subwoofer system. System performance ultimately depends on the amplifier, source unit, speakers, enclosure, and setup used with the kit.
The vehicle-specific harness design is the key engineering advantage of this package. It follows the GENERAL's intended cable-routing path from the battery area toward the front of the vehicle, including provision for routing through the wire tunnel on 4-seat models. The harness connects to amplifier power, ground, input, output, and speaker connections during installation.
The RFGNRL-K8 is a logical foundation for a staged Polaris GENERAL audio build using compatible Rockford Fosgate components. It works with Rockford Fosgate T400X4ad and TM400X4ad small-chassis amplifiers. When used with the RFGNRL-FWE front subwoofer enclosure, the amplifier mounts to that enclosure's bracket.
Key Features
- GENERAL-Specific Harness: Designed for select Polaris GENERAL audio installations.
- 2- And 4-Seat Fitment: Supports both GENERAL seating configurations.
- Compatible Amplifiers: Works with T400X4ad and TM400X4ad small-chassis amplifiers.
- 8-Gauge Power Wiring: Includes 8-gauge power and ground wire.
- Pre-Loomed Harnesses: Helps keep power, ground, and speaker wiring organized.
- OEM Mounting Points: Bolts into factory mounting locations with minimal drilling.
Design & Installation
The RFGNRL-K8 uses copper wiring and a vehicle-tailored harness layout to support a clean GENERAL installation. Pre-cut and loomed power, ground, and speaker wiring reduces the need to build every connection from bulk wire. The package includes wire harnesses, mounting screws, and plastic wire tie wraps for installation.
Installation requires access beneath the seats and through the dash and hood areas to route the harness from the battery toward the front of the vehicle. On 4-seat models, the cables route through the wire tunnel between rear and front seating areas; the kit provides cable length for this path. Disconnect the battery negative terminal before installation, keep wiring clear of the shock assembly in the wheel-well area, and verify vehicle trim compatibility before purchase.
| Brand | Rockford Fosgate |
|---|---|
| Model Number | RFGNRL-K8 |
| UPC | 780687352028 |
| Product Type | Polaris GENERAL amplifier installation kit |
| Primary Vehicle Application | Select Polaris GENERAL models |
| Applicable Vehicle | Polaris GENERAL 1000 |
| 2-Seat Compatibility | Yes |
| 4-Seat Compatibility | Yes |
| Amplifier Compatibility | Rockford Fosgate Power T400X4ad |
| Amplifier Compatibility | Rockford Fosgate TM400X4ad |
| Amplifier Chassis Compatibility | Rockford Fosgate compact-chassis amplifiers |
| Amplifiers Supported | 1 |
| Amp Kit Type | Power |
| Power Wire Gauge | 8 gauge |
| Ground Wire Gauge | 8 gauge |
| Wire Material | Copper |
| Fuse Size | 60A |
| Power Harness | Pre-cut and loomed |
| Ground Harness | Pre-cut and loomed |
| Speaker Wire Harness | Pre-cut and loomed |
| Amplifier Input Connection | Connects to radio input connector(s) |
| Amplifier Connections | Power, ground, input, output, and speaker harness connections |
| Vehicle Mounting | Uses OEM mounting holes |
| Drilling Requirement | Minimal drilling required |
| RFGNRL-FWE Integration | Amplifier mounts to subwoofer enclosure bracket |
| GENERAL System Integration | Designed for Rockford Fosgate GENERAL-specific enclosures and dash kits |
| 4-Seat Cable Routing | Routes through wire tunnel from rear to front seating area |
| 4-Seat Cable Length | Provided for the required routing path |
| Included Wire Harnesses | Yes |
| Included Mounting Screws | Yes |
| Included Cable Management | Plastic wire tie wraps |
| Suggested Tool | Small flat-blade screwdriver |
| Suggested Tool | T-40 Torx driver |
| Suggested Tool | 13 mm wrench |
| Suggested Tool | 1/2-inch wrench |
| Suggested Tool | 2.5 mm Allen driver |
| Suggested Tool | Wire cutters |
| Suggested Tool | Panel tool |
| Published Product Weight | 2.6 lb |
| Warranty | 2 years |
| RIDE COMMAND Edition Compatibility | Not compatible per published fitment notes |
What vehicles is the RFGNRL-K8 designed for?
It is designed for select Polaris GENERAL 1000 applications, including 2-seat and 4-seat models. Confirm fitment for the specific model year, trim, and factory options before ordering.
Which amplifiers work with this wiring kit?
The kit is specified for Rockford Fosgate Power T400X4ad and TM400X4ad small-chassis amplifiers. It is also described as being designed for Rockford Fosgate compact-chassis amplifiers.
Does this kit include an amplifier or speakers?
No. This product is an amplifier wiring and mounting kit, not an amplifier or speaker package. It includes wiring-related installation hardware, while the amplifier and other audio components are purchased separately.
What wiring is included?
The kit includes pre-cut and loomed power, ground, and speaker wire harnesses. The power and ground wiring is specified as 8-gauge copper, and the kit uses a 60A fuse.
Where does the amplifier mount?
The kit mounts using OEM vehicle mounting holes with minimal drilling required. When paired with the RFGNRL-FWE front subwoofer enclosure, the amplifier mounts to that enclosure's bracket.
Is it compatible with Polaris RIDE COMMAND Edition models?
Published product fitment notes list RIDE COMMAND Edition models as not compatible. Verify the vehicle's factory audio configuration and trim before installation.
Shipping
- Free 2nd-Day Air shipping on this item
- FREE Next-Day Air on orders over $499
- Orders placed on business days are typically processed the same day, delivery estimates are shown at checkout.
Warranty & Returns
- Authorized Dealer — 100% authentic products with full manufacturer warranty
- 60-Day Returns — Hassle-free returns, see our return policy for details
- Price Match Guarantee — We match verified prices, see policy for terms

Rockford Fosgate RFGNRL-K8 Polaris General Amplifier Wiring Kit













