kenwood kmr m312bt manual

The Kenwood KMR-M312BT is a single-DIN digital media receiver with Bluetooth connectivity, USB input, auxiliary input, and AM/FM tuner. Features include hands-free calling, audio streaming, front panel USB for iOS/Android devices, 50W x 4 channels, customizable illumination, and intuitive controls. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Connecting Devices 7. Bluetooth Operation 8. USB Playback 9. Care & Maintenance 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Digital media receiver, Bluetooth module, USB input, Auxiliary input, Remote Control, Wiring harness.

Feature	Description
Bluetooth connectivity	For hands-free calling and audio streaming
USB input	For iOS/Android devices and USB storage
Auxiliary input	For external audio devices
AM/FM tuner	With preset stations
Power output	50W x 4 channels (max)
Illumination	Customizable button colors
Source button	Cycles through input sources
Volume knob	Main volume control
Phone button	Accesses Bluetooth phone functions
Power button	Turns unit on/off

Installation

Unpack and inspect contents. Ensure proper vehicle compatibility.

Disconnect vehicle battery: Remove negative terminal for safety.
Remove existing radio: Use appropriate removal tools for your vehicle.
Connect wiring harness: Match colors and functions carefully.
Mount unit: Secure in dashboard using supplied hardware.
Reconnect battery and test functions.

WARNING! Professional installation recommended. Incorrect wiring may damage vehicle electrical system.

First-Time Setup

Power on unit; follow initial configuration.

Bluetooth pairing: Press PHONE button, search for "KMR-M312BT" on your device.
Radio presets: Tune to desired stations, press and hold preset buttons.
Illumination settings: Access settings menu to customize button colors.
Audio settings: Adjust bass, treble, balance, and fader.

CAUTION! Do not operate while driving. Park vehicle for initial setup.

Specifications

Power Output: 50W x 4 channels (max)
Bluetooth: Version 2.1 + EDR, A2DP, AVRCP, HFP
USB: Supports iOS/Android devices, USB storage
Inputs: USB, Auxiliary 3.5mm, AM/FM antenna
Tuner: AM/FM with 18 FM/6 AM presets
Illumination: Customizable RGB colors
Power Supply: 12V DC negative ground
Dimensions: Single-DIN (178mm x 50mm)

Controls and Settings

Front panel controls: Power, Volume, Source, Phone, USB port, Aux input.

Remote: Power, Volume, Source selection, Track controls, Phone functions.

Audio settings: Bass, Treble, Balance, Fader, Loudness. Bluetooth: Pairing, Phonebook access, Call history. System: Illumination color, Display settings, Reset options.

Connecting Devices

USB: Front port for devices and storage. Aux: 3.5mm input for audio players. Bluetooth: Wireless connectivity.

Turn off unit before connecting wired devices.
Use quality cables for best audio performance.
Select source via SOURCE button (BT, USB, AUX, TUNER).

Tip: Keep USB devices formatted as FAT32 for compatibility.

Bluetooth Operation

Supports hands-free calling and audio streaming.

Pairing: Press PHONE, search on device, enter PIN "0000" if required.
Calling: Use phonebook access, call history, or voice dialing.
Audio streaming: Select BT as source, control playback from unit or device.
Disconnect: Turn off Bluetooth on device or reset pairing.

WARNING! Maintain attention on driving. Use voice commands when possible.

USB Playback

Supports MP3, WMA, AAC audio files from USB storage.

Insert USB device: Connect to front USB port.
Play: Automatically starts or press PLAY; navigate folders with arrow buttons.
Skip: PREV/NEXT for tracks.
Repeat/Shuffle: Access through mode button.
File support: MP3 (32-320kbps), WMA (32-192kbps).

NOTE: Some DRM-protected files may not play.

Care & Maintenance

Use soft, dry cloth for cleaning. Avoid liquids and abrasive cleaners.

CAUTION! Do not use chemical cleaners. Keep USB port free of debris.

Regulatory Information

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power	Wiring/fuse	Check fuse, wiring connections, battery connection.
Bluetooth not connecting	Pairing/range	Delete old pairing, ensure within range, restart both devices.
USB not recognized	Format/power	Reformat to FAT32, try different device, check power requirements.
Poor audio quality	Settings/source	Adjust EQ settings, check source file quality, verify connections.
Radio weak reception	Antenna/location	Ensure antenna connected properly, check antenna condition.

Reset: Disconnect battery for 30 seconds to reset unit.

Service: Contact authorized Kenwood service center for repairs.