Avylet C304 Car Stereo User Manual

Introduction

Thank you for choosing the Avylet C304 Car Stereo. This manual provides detailed instructions for the installation, operation, and maintenance of your new car radio. Please read this manual thoroughly before using the product to ensure proper function and to prevent damage.

The Avylet C304 is a versatile car MP3 player featuring Bluetooth 5.0, FM/AM/RDS radio, USB, SD card, and AUX input capabilities, designed to enhance your in-car audio experience with clear sound and convenient controls.

Safety Information

• Do not operate the device in a manner that distracts you from driving. Always prioritize road safety.
• Ensure proper wiring and installation to prevent short circuits or electrical hazards. If unsure, consult a professional.
• Do not expose the unit to extreme temperatures, direct sunlight, or excessive moisture.
• Avoid disassembling or modifying the unit. This may void the warranty and pose safety risks.
• Keep the volume at a level that allows you to hear external traffic sounds.

Package Contents

Verify that all items are present in the package:

• 1 x Car Stereo
• 1 x Remote Control (With batteries)
• 2 x Connection Cables
• 2 x Disassembly Keys
• 1 x User Manual

Image: Avylet C304 Car Stereo with its remote control, connection cables, and disassembly keys, all neatly arranged next to the product box.

Product Overview

Familiarize yourself with the main components and controls of the Avylet C304 Car Stereo.

Image: Front panel of the Avylet C304 Car Stereo, highlighting the power button, mode button, volume knob, AUX input, USB ports, SD card slot, and LCD display showing radio frequency.

Front Panel Controls:

• POWER Button: Turns the unit on/off.
• MODE Button: Switches between Radio, Bluetooth, USB, SD, and AUX modes.
• Volume Knob: Rotates to adjust volume; press to access settings (Bass, Treble, Balance, Fader, EQ, Loud, Clock, Color).
• AUX IN Port: 3.5mm jack for external audio devices.
• USB Ports: One for charging (left), one for USB drive playback (right).
• SD Card Slot: For playing music from an SD card.
• BAND/AMS Button: Selects radio bands (FM1, FM2, FM3, AM1, AM2) and performs automatic memory scan.
• Tuning/Track Buttons (<< / >>): Short press for previous/next track or station; long press for fast forward/rewind or auto-scan.
• Numeric Preset Buttons (1-6): Store and recall radio stations.
• LCD Display: Shows time, radio frequency, track information, and mode.

Setup

Installation

Before installation, ensure your vehicle's battery is disconnected to prevent short circuits. This unit is designed for 12V DC negative ground systems.

1. Insert the mounting sleeve into the dashboard opening. Bend the tabs outwards to secure it.
2. Connect the wiring harness according to the wiring diagram.
3. Slide the car stereo into the mounting sleeve until it clicks into place.
4. Reconnect the vehicle's battery.

Wiring Diagram

Refer to the following diagram for correct wiring connections. Incorrect wiring can damage the unit or your vehicle's electrical system.

Image: Comprehensive wiring diagram for the Avylet C304, illustrating connections for speaker outputs (A1-A8), power (B4-B8), antenna, and battery, along with a visual explanation of the memory function for time, volume, song playback, and radio stations.

• B8 - Black: Negative pole (Car battery)
• B7 - Red: ACC (Ignition switch, 12V when key is on)
• B5 - Blue: ANT (Automatic antenna control)
• B4 - Yellow: Positive pole (Car battery 9-30V, constant power for memory)
• Speaker Wires (A1-A8): Connect to corresponding vehicle speakers. Ensure correct polarity.

Note: For memory retention (time, radio stations), both the Red (ACC) and Yellow (Constant Power) wires must be correctly connected to their respective power sources.

Operating Instructions

Basic Operation

• Power On/Off: Press the POWER button.
• Volume Adjustment: Rotate the Volume Knob clockwise to increase, counter-clockwise to decrease.
• Mode Selection: Press the MODE button repeatedly to cycle through Radio (FM/AM), Bluetooth, USB, SD, and AUX modes.

Radio Operation (FM/AM/RDS)

Image: The Avylet C304 car stereo showing its FM radio function, with an antenna graphic indicating signal reception and the display showing "F1 87.5". Text highlights FM/AM/RDS function and storage for up to 30 stations.

• Band Selection: Press the BAND/AMS button to switch between FM1, FM2, FM3, AM1, and AM2 bands.
• Manual Tuning: Short press the Tuning buttons (<< / >>) to adjust the frequency step by step.
• Automatic Search: Long press the Tuning buttons (<< / >>) to automatically search for the next strong station.
• Store Presets: Tune to your desired station, then long press one of the Numeric Preset buttons (1-6) until you hear a beep. The station is now saved.
• Recall Presets: Short press the Numeric Preset buttons (1-6) to recall a saved station.
• Automatic Memory Store (AMS): Long press the BAND/AMS button to automatically scan and store the strongest stations into the current band's presets.
• RDS Function: The RDS (Radio Data System) feature allows the radio to display station names and other information where available.

Bluetooth Operation

Image: A driver's perspective showing a smartphone mounted on the dashboard, displaying an incoming call, with the Avylet C304 car stereo visible below. This illustrates the Bluetooth 5.0 hands-free calling and music playback feature.

1. Pairing:
   • Ensure the car stereo is in Bluetooth mode (press MODE until "BT" or "Bluetooth" appears).
   • On your mobile device, enable Bluetooth and search for available devices.
   • Select "CAR BT" from the list of devices. No password is typically required.
   • Once paired, the display will show "CONNECTED" or similar.
2. Hands-Free Calling:
   • When a call comes in, press the Volume Knob (or the green call button on the remote) to answer.
   • Press the Volume Knob (or the red call button on the remote) again to end the call.
   • Use the built-in microphone for conversations.
3. Audio Streaming:
   • Once paired, you can play music from your mobile device through the car stereo.
   • Use the Tuning buttons (<< / >>) to skip tracks.

USB/SD/AUX Operation

Image: The Avylet C304 car stereo highlighting its two USB slots (one for charging, one for playback), SD card slot, and AUX-in port. Illustrations show a smartphone charging via USB, a memory card, and a USB drive.

• USB Playback: Insert a USB drive into the right USB port. The unit will automatically switch to USB mode and begin playback of supported audio files (MP3/WMA/WAV/FLAC).
• SD Card Playback: Insert an SD card into the SD card slot. The unit will automatically switch to SD mode and begin playback of supported audio files.
• AUX Input: Connect an external audio device (e.g., smartphone, MP3 player) to the 3.5mm AUX IN port using an audio cable. Press MODE to select AUX mode.
• USB Charging: The left USB port is primarily for charging mobile devices.

Display and Backlight Settings

Image: A hand adjusting the volume knob on the Avylet C304 car stereo, with an overlay showing the seven available backlight colors (Auto, Red, Green, Blue, Yellow, Purple, Cyan, White) that can be chosen for the buttons and display.

• Changing Backlight Color: Press the Volume Knob to enter the settings menu. Rotate the knob to navigate to the "COLOR" option. Press the knob to select, then rotate to choose from 7 available colors or "AUTO" mode for cycling colors. Press again to confirm.

Clock Setting

Image: The Avylet C304 car stereo displaying the time "10:01" on its LCD screen, emphasizing its independent clock display feature. Product dimensions (180mm, 50mm, 98mm, 186mm, 57mm) are overlaid on the image.

• Setting Time: Press the Volume Knob to enter the settings menu. Rotate the knob to navigate to the "TIME" or "CLOCK" option. Press the knob to select. Use the Tuning buttons (<< / >>) to adjust hours and minutes, and the Volume Knob to move between hour/minute settings. Press again to confirm and exit.

Audio Settings

• Accessing Audio Settings: Press the Volume Knob to enter the audio settings menu.
• Adjusting Settings: Rotate the Volume Knob to cycle through options like BASS, TREBLE, BALANCE (L/R), FADER (F/R), EQ (Equalizer presets: POP, ROCK, JAZZ, CLASS, OFF), and LOUD (Loudness on/off). Press the knob to select an option, then rotate to adjust its value. Press again to confirm.

Maintenance

• Clean the unit's front panel with a soft, dry cloth. Do not use abrasive cleaners or solvents.
• Keep the USB and SD card slots free from dust and debris.
• Ensure proper ventilation around the unit to prevent overheating.

Troubleshooting

Specifications

Warranty and Support

Avylet products are designed and manufactured to the highest quality standards. For warranty information or technical support, please contact Avylet customer service.

Manufacturer: Avylet

Email: service@avylet.com

Please retain your proof of purchase for any warranty claims.