Rockford Fosgate DEFEND17-STG1 5.25" Audio Roof System

The Rockford Fosgate DEFEND17-STG1 is a vehicle-specific audio roof system for select 2017 and newer Can-Am Defender models. It combines a PMX-1 marine-grade digital media receiver with two 5.25-inch full-range speakers in a roof-mounted assembly. The system is designed for riders who want integrated music playback without building a custom audio installation from separate components.

This two-speaker system is intended for compatible two-door and four-door Defender configurations. It mounts at factory attachment points and is designed to work with compatible factory windshields and headliners. Its three-piece roof design keeps the receiver and speakers together in one overhead installation.

The included PMX-1 receiver supplies built-in amplified power, AM/FM/weather-band radio, Bluetooth streaming, USB, and AUX connectivity. A 2.3-inch full dot-matrix display provides source and settings information. The receiver also includes a 7-band graphic EQ with parametric EQ functions to tailor playback for the cabin environment.

Two Rockford Fosgate TMS5 5.25-inch coaxial speakers provide the system's full-range sound. Their weather-resistant, Element Ready construction uses reinforced polypropylene cones, Santoprene surrounds, neodymium motor structures, and integrated tweeters. This configuration is suited to an open-air utility vehicle where durability and clear output matter alongside convenient operation.

The DEFEND17-STG1 is a practical starting point for a Defender audio upgrade because the PMX-1 includes RCA outputs and adjustable crossover settings for system expansion. The roof system itself is designed as a plug-and-play installation, with keyed electrical connections and a built-in antenna routed across the passenger-side speaker pod. Verify the specific Defender model and year against the fitment chart before purchase.

Key Features

• Vehicle-Specific Roof System: Designed for select 2017+ Can-Am Defender two-seat and four-seat models.
• Two 5.25-Inch Speakers: Full-range coaxial speakers provide integrated overhead audio reproduction.
• PMX-1 Media Receiver: Built-in amplified receiver supports radio, Bluetooth, USB, and AUX sources.
• Bluetooth Streaming: A2DP and AVRCP support wireless music playback from compatible devices.
• AM/FM/Weather Band: Built-in tuner adds broadcast and weather-band listening options.
• Sound Adjustment Tools: 7-band graphic EQ, parametric EQ, and selectable crossovers support tuning.

Design & Installation

The DEFEND17-STG1 uses a three-piece roof assembly engineered around the Defender's factory mounting locations. Its PMX-1 receiver has a marine-grade front panel, while the TMS5 speakers use weather- and water-resistant Element Ready construction. The system's built-in antenna is integrated into the passenger-side speaker-pod area for radio reception.

Installation is intended to require no drilling or cutting on compatible vehicles, using factory mounting points and keyed electrical connections. The system is designed for use with compatible factory roof liners, glass windshields, and full doors. Confirm the exact Defender trim, seating configuration, and model year before installation, especially on Limited models that may already have overhead hardware.