Rockford Fosgate DEFEND17-STG1 Roof Audio System for Select 2017 and Up Can-Am Defender Models
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What's Inside?
- • Radio Panel with installed PMX-1 Marine Digital Media Receiver
- • (2) Speaker Pods with installed TMS5 5-1/4" Speakers
- • Metal Mounting Bracket
- • 9' Loomed Power & Ground Harness with in-line 10A ATO fuse
- • 10" Power & Ground Adapter Harness (2-pin plug on one end / bare-ended wires on other end)
- • Mounting Plate with Threaded Posts
- • Magnet on 16" Flexible Handle
- • Ball Magnet on 5' Length of String
- • (2) Crimp-On Ring Terminals
- • (2) Crimp Connectors
- • (10) M6x28mm T30 Torx-Head Screws
- • (6) 5/8" T20 Torx-Head Screws
- • (8) M6 Nylon Locking Nuts
- • (4) M6 Speed Clips
- • Tech Support Information
- • RF Contact Information
- • Owner's Manual
Overhead Sound That Turns Every Ride Into a Concert
If you want your Rockford Fosgate DEFEND17-STG1 roof system to completely change the way your Yamaha YXZ1000R sounds, this is where it gets serious. The integrated 3-piece enclosure design comes pre-assembled into a clean overhead unit that bolts in as one solid system, giving you that OEM-style fit without the headache. At the center is the PMX-1 marine digital receiver, built to handle dust, vibration, heat, and water while still giving you Bluetooth streaming, USB playback, and full media control right from above your head.
Wide Cabin Coverage With Clean, Punchy Output
This system is all about filling your cabin with balanced, clear sound that actually makes sense in an open environment. The dual TMS5 5.25 inch high-output speakers are tuned for crisp midrange and strong high-frequency response, so your music stays sharp even when you are wide open on the trail. Backed by a 4-channel MOSFET amplifier, the sound stays clean and distortion-free even when you push the volume hard. It is built to give you that full cabin coverage without dead zones or weak spots.
Built Tough for Real Off-Road Abuse
The DEFEND17-STG1 is not just about sound, it is about surviving everything the trail throws at it. With element-ready protection, Santoprene-isolated speaker design, and rugged marine-grade materials, this system shrugs off UV exposure, water, salt, vibration, and temperature swings like it is nothing. The Klippel-optimized drivers keep distortion low even under heavy load, while CEA-compliant power handling ensures consistent, reliable performance when you are running it hard for hours.
Smart Control, Easy Install, Always Ready
You get full control without overcomplication thanks to advanced tuning tools like a 7-band EQ, Punch EQ, crossover adjustments, and preset sound modes. Bluetooth streaming, USB media support, and AM/FM with weather band keep your entertainment options wide open no matter where you ride. Installation is just as easy, with plug-and-play wiring, factory-style overhead mounting, and no drilling or cutting required. Add in voltage monitoring, EEPROM memory retention, and smart system feedback, and you have a roof audio system that is built to perform every time you fire it up.
Frequently Asked Questions (FAQ)
- • Why did my DEFEND17-STG1 installation take much longer than expected?
Although the system is marketed as a straightforward fit, owners have reported spending 2–6 hours installing it. Tight access around the roof hardware and limited room for tools can turn a seemingly simple installation into a much longer job.
- • Why can't I get the roof bolts installed after positioning the speaker pods?
One owner found the speaker pods left very little room to install the roof bolts afterward. Another installer reported that loosening the roof made access easier, suggesting that the order of assembly can make a major difference.
- • Why don't the speaker mounting holes line up perfectly?
A customer installing the system on a 2025 Defender Max reported that the driver's-side screw holes did not line up easily and required considerable effort to seat the speaker pod. Before forcing the hardware, make sure the roof and mounting brackets are positioned correctly.
- • Why does the installation feel more complicated than a plug-and-play system?
Real owners have described the installation as difficult despite the product's plug-and-play design. One buyer reported having to detach part of the roof and reverse the direction of certain bolts to gain access to the mounting hardware.
- • Why did my Bluetooth music work better than the FM radio?
One owner reported that Bluetooth worked reliably while the FM receiver performed acceptably only when stationary. Since the antenna is integrated into the passenger-side speaker pod area, radio reception can vary with location and surrounding conditions.
- • Why does the audio sound only average after installing the Stage 1?
Customer feedback is mixed. One buyer described the sound as merely okay, while another owner with a 2024 Defender Max HD10 said the system sounded great and met their needs. Expectations, cabin acoustics, source quality, and EQ settings can therefore make the same system seem very different.
- • Why can't I find good installation instructions for my exact Defender?
A customer reported that the included instructions were insufficient and relied on an installation video covering multiple Defender versions. Because fitment varies across Defender models and years, checking the compatibility chart and installation material for the specific vehicle is important.
- • Why does my system fit differently from another Defender owner's installation?
The DEFEND17-STG1 is only compatible with select Defender configurations, not every 2017-and-newer model. The compatibility tables show different fitment by model, year, cab style, and trim, which explains why two Defender owners can encounter different mounting situations.
- • Why is tightening the roof hardware important before installing the speakers?
One owner specifically warned that the roof should be tightened back down before permanently mounting the speaker pods. Leaving the roof loose during the speaker installation can make alignment and final assembly more difficult.
- • Why does my DEFEND17-STG1 seem difficult to install even though no drilling is required?
The system uses factory mounting points and does not require drilling or cutting, but that does not mean every bolt is easy to access. Owners have reported tight spaces under the roof and recommended ratchet wrenches or loosening the roof to make the installation manageable.
Features:
- DEFEND17-STG1 System: Complete roof-mounted Stage 1 audio package featuring integrated PMX-1 digital media receiver and dual high-output speaker pods for balanced cabin audio coverage.
- Integrated 3-Piece Enclosure Design: Pre-assembled modular system that bolts together into a single overhead unit for simplified installation and OEM-style fitment.
- PMX-1 Marine Digital Receiver: UV-stable, IPX-rated head unit engineered for dust, vibration, temperature extremes, and water resistance in harsh environments.
- High Output TMS5 Speakers: 5.25” marine-grade drivers delivering clear midrange and high-frequency response optimized for open-cab listening environments.
- Factory-Style Installation: Designed for overhead mounting with no drilling or cutting required, preserving vehicle structure and factory integrity.
- Plug-and-Play Wiring System: Pre-configured speaker and power harnesses designed for fast connection with minimal wiring complexity.
- Element Ready Protection: Built to withstand UV exposure, water intrusion, salt, vibration, and thermal shock for long-term durability.
- Bluetooth Audio Streaming: Wireless music playback with full control of playlists, tracks, and album information from compatible smart devices.
- USB Media Support: Rear USB port enables playback of MP3/WMA files with folder navigation and device charging capability.
- AM/FM & Weather Band Tuner: Integrated radio system with station presets and weather band access for real-time environmental updates.
- 4-Channel MOSFET Amplification: Built-in high-efficiency amplifier delivering clean, distortion-free audio output across all channels.
- Advanced Audio Tuning Controls: Includes 7-band EQ, preset EQ modes, Punch EQ, and crossover adjustments for customizable sound shaping.
- Voltage Monitoring System: Onboard voltage display and low-voltage warning system for electrical system awareness during operation.
- EEPROM Memory Retention: Preserves user settings and audio preferences even after power disconnection.
- Santoprene-Isolated Speaker Design: Enhanced weather resistance and durability for long-term outdoor performance stability.
- Klippel Optimized Drivers: Precision-engineered speaker architecture for reduced distortion and improved acoustic accuracy under load.
- CEA-Compliant Power Handling: Designed to meet industry-standard continuous power performance ratings for reliable output delivery.
Specifications:
PMX-1
- RMS Power (CTA-2006): 25 watts
- Peak Output: 50 watts
- AUX Input: RCA (rear)
- USB Input: Rear
- USB Port Power: 1A
- Backup Camera Input: No
- Second Camera Input: No
- Preamp Outputs: 4-channel
- Sub Preamp Outputs: No
- Switchable Rear Preamp Outputs: Yes
- Memory Card Slot: USB memory
- iPhone Compatibility: No
- CarPlay: No
- Siri Control: No
- Android Control: Yes
- Android Auto: No
- Alexa Voice Control: No
- FM Sensitivity: 8 dBf
- European Tuning: Yes
- Seek/Scan: Seek
- Radio Data System: No
- Music File Playback: MP3, WMA
- High-Res Playback: No
- Navigation: No
- Navigation App Compatible (iOS): No
- Navigation App Compatible (Android): No
- Bluetooth Compatible: Built-in
- Bluetooth Version: 3.0+EDR
- Satellite Radio Ready: No
- HD Radio: No
- Video Screen: No
- Preamp Voltage: 4V
- Screen Size: 0
- Screen Type: N/A
- Display Color: White
- Key Button Color: White
- EQ Bands: 7
- Wireless Remote: No
- Steering Wheel Control Compatible: No
TMS5
- Power Handling (MAX): 130 Watts
- CEA-2031 Compliant: Yes
- Speaker Type: 2-Way Coax
- Frequency Response: 64 Hz - 20 kHz
- Nominal Impedance: 4 Ohms
- Midrange Size (Nominal Diameter): 5.25"
- Power Handling (RMS): 65 Watts
- Voice Coil Diameter: 1.40" (35.6 mm)
- Tweeter Mounting Depth: N/A
- Grille/Trim Ring Included: Yes
- Mounting Hardware: Yes
- Crossover: Built-in tweeter crossover
- Sensitivity (@ 2.83V/1M): 94 dB
- Sensitivity (@ 1W/1M): 91 dB
- Midrange Mounting Depth: 2.05" (52.0 mm)
PMX-BTUR
- Standby Time: Up to 2 years
- Description: Bluetooth Universal Remote
- Operating Voltage: 2.4V - 3.3V
- Compatibility: Android 5.0+ / Apple iOS 8.0+
- Dimensions: 2.75” x 1-7/8” x 1-1/4" (7 mm x 4.8 mm x 3.2 mm)
- Power: Battery operated (1x CR2032)
- Bluetooth® Range: 10 meters (32 feet)
- LED Indicators: Green (Bluetooth pairing), Red (Low battery)
- Bluetooth® Version: 4.0 Smart Ready
- Bezels: Hand-held / Steering wheel
- UPC: 780687364151
- Weight: 20
- 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.
