Kenwood KMM 303BT Manual

The Kenwood KMM 303BT is a single-DIN digital media receiver with Bluetooth connectivity, USB input, auxiliary input, and AM/FM radio. Features include hands-free calling, audio streaming, front panel USB port for iOS/Android devices, 4x50W MOSFET power output, customizable illumination, and advanced audio 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. Audio Features 9. Care & Maintenance 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Digital media receiver, Bluetooth module, USB input, AUX 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
AUX input	For external audio devices
AM/FM tuner	With 18 FM/6 AM presets
MOSFET power	4x50W maximum output
Illumination	Customizable button colors
Audio controls	Bass, treble, fader, balance adjustments
Source button	Cycles through input sources
Volume knob	Main volume control
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 color-coded wires to vehicle harness.
Connect antenna: Attach vehicle antenna cable to receiver.
Mount receiver: Secure in dashboard using mounting sleeve.
Reconnect battery and test functions.

WARNING! Professional installation recommended. Ensure proper grounding and fuse protection.

First-Time Setup

Power on unit; follow initial setup procedure.

Bluetooth pairing: Enter pairing mode, search for "KMM-303BT" on your device.
Radio presets: Tune to desired stations, press and hold preset buttons.
Audio settings: Adjust bass, treble, fader, balance to preference.
Illumination: Set button colors in settings menu.
Clock: Set time using menu controls.

CAUTION! Do not operate while driving. Park vehicle during setup.

Specifications

Power Output: 4x50W MOSFET
Bluetooth Version: 3.0+EDR
USB Support: iOS/Android devices, USB storage
Radio: AM/FM with RDS
Frequency Response: 20Hz-20kHz
Signal-to-Noise: >80dB
Illumination: Multi-color LED
Dimensions: Single-DIN (178x50mm)
Power Requirement: 12V DC negative ground

Controls and Settings

Access settings via menu button. Front Panel: Power/Volume knob, Source button, USB port, AUX input.

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

Audio: Bass (-10 to +10), Treble (-10 to +10), Fader (F-R balance), Balance (L-R balance). Bluetooth: Pairing, Phonebook access, Call history. Display: Dimmer, Button color, Clock setting. System: Reset, Beep on/off.

Connecting Devices

USB: Front port for devices/storage. AUX: 3.5mm input for external audio. Bluetooth: Wireless connection.

Turn off vehicle before connecting devices.
USB: Connect compatible device for charging/playback.
AUX: Connect audio cable from external device.
Bluetooth: Pair mobile device for calls/audio.

Tip: Use high-quality cables for best audio performance.

Bluetooth Operation

Supports hands-free calling and audio streaming.

Pairing: Hold Source to enter BT mode, search on phone.
Calls: Answer/end with phone button, reject with long press.
Audio: Stream music from paired devices.
Phonebook: Access contacts via menu (if supported).
Disconnect: Turn off BT on device or reset pairing.

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

Audio Features

Equalizer settings: Flat, Powerful, Natural, Vocal. Loudness: On/Off. Source tone memory: Independent settings per source.

Care & Maintenance

Use soft, dry cloth for cleaning. Avoid chemicals and abrasives.

CAUTION! Do not use liquids; keep away from moisture and extreme temperatures.

Regulatory Information

FCC Part 15: Class B digital device; complies with interference limits. Bluetooth qualified device. Copyright © Kenwood Corporation. For support, visit www.kenwood.com or contact authorized service centers.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power	Wiring/fuse	Check fuse, wiring connections, ground.
Bluetooth not connecting	Pairing mode/distance	Enter pairing mode, ensure within range, delete old pairing.
No sound	Settings/speakers	Check volume, mute, speaker connections.
USB not recognized	Device compatibility	Use supported devices, check cable, format storage.
Poor radio reception	Antenna connection	Ensure antenna connected properly, check location.

Reset: Menu > System > Reset to factory defaults.

Service: Contact authorized Kenwood service center.