eBay

Kenwood KMR-M300BT Gauge-Style Marine Digital Media Receiver

Take your soundtrack out on the water or down the trail without worrying about the elements. The Kenwood KMR-M300BT is a rugged, compact digital media receiver engineered specifically for marine, UTV, and motorsport applications. Designed to fit into a standard 3-inch gauge opening, this mech-less receiver brings seamless Bluetooth streaming, global weather band tuning, and robust multi-zone system expansion to your boat, side-by-side, or outdoor vehicle.

Key Performance Features

Rugged Outdoor Durability: Features an IP66-certified waterproof and dust-proof front panel, ASTM B117 salt spray corrosion resistance, ASTM D4329 UV protection, and 3-axis vibration resistance to survive harsh environments.
Compact Gauge-Style Mounting: Engineered with a specialized 3-inch circular gauge-style chassis, allowing it to drop cleanly into standard instrument dash cutouts where traditional rectangular radios won't fit.
Built-In Bluetooth Streaming: Wirelessly stream music and control popular audio applications from your phone, while keeping your device safely tucked away in a dry compartment.
Lossless FLAC Audio Playback: Decodes high-fidelity, lossless FLAC files (up to 48kHz/24bit) along with standard MP3, WMA, and AAC formats from a rear-panel USB drive.
Advanced 13-Band Equalizer: Outfitted with a comprehensive 13-band EQ and independent subwoofer volume control, giving you the flexibility to tune your open-air soundstage perfectly.
Global Weather Band Tuner: Keeps you ahead of the storm with built-in access to AM/FM frequencies as well as official Global Weather Band emergency alerts.

Technical Specifications

Feature	Details
Mounting Configuration	3" Gauge-Style Hole Cutout
Weather Protection	IP66 Front Panel / IPX4 Chassis / Conformal Coated PCB
Display Type	2.7" High-Visibility Sunlight-Readable LCD
Preamp Line Outputs	3 Sets of RCA Pre-Outs (2.0V Front, Rear, Subwoofer)
Media Inputs	Rear USB Port (with 1.5A Charging), Rear Aux-In, Backup Camera Input
Illumination	Variable Multicolor RGB Controls
Expansion Options	SiriusXM Ready / Wired Remote Control Ready (KCA-RC35MR)

Customer Frequently Asked Questions

Does this receiver support a backup or rear-view camera?

Yes! The Kenwood KMR-M300BT comes equipped with a dedicated rear-view camera input. Connecting an optional camera lets you monitor what's behind you directly on the 2.7-inch LCD screen, which is a great safety addition for UTVs, trailers, or boats.

Can I control this radio from another part of my boat or vehicle?

Yes, it features multi-wiring remote capabilities. It is fully compatible with the Kenwood KCA-RC35MR wired remote control (sold separately). In fact, you can daisy-chain up to 6 remotes in-line with each other, allowing you to control the volume, source, and tracks from the swim platform, passenger seating, or helm.

Is it safe to get this radio wet or spray down the dash?

The front panel of the KMR-M300BT is IP66 certified, meaning it can easily handle heavy splashing, rain, and hose-downs during cleaning. However, the rear chassis is rated at IPX4, so while it resists splashing, you should ensure the back housing inside the dashboard cavity is protected from direct submersion or constant pooling water.

Installation Note

Because the Kenwood KMR-M300BT uses a circular gauge-style footprint, ensure your dashboard cutout measures exactly 3 inches in diameter before installing. The circuit board features a specialized conformal coating to prevent internal moisture corrosion. When routing your wiring, make sure to safely secure the rear USB and auxiliary input extension cables away from any sharp metal brackets or moving mechanical steering links behind the helm.