1. Introduction
Thank you for choosing the Roadstar RS-2714BR USB/Bluetooth Car Radio. This manual provides essential information for the proper installation, operation, and maintenance of your new car audio system. Please read this manual thoroughly before using the product to ensure optimal performance and safety.
2. Safety Information
- Power Supply: This unit is designed for a 12V DC negative ground electrical system. Ensure correct wiring to prevent damage.
- Installation: Professional installation is recommended. Incorrect wiring can cause fire or damage to the vehicle's electrical system.
- Volume Control: Keep the volume at a level where you can still hear outside traffic sounds. Excessive volume can impair your ability to drive safely.
- Moisture: Do not expose the unit to moisture or water to prevent electric shock or malfunction.
- Cleaning: Use a soft, dry cloth for cleaning. Avoid abrasive cleaners or solvents.
3. Package Contents
Verify that all items are present in the package:
- Roadstar RS-2714BR Car Radio Unit
- Remote Control
- ISO Connector Wiring Harness
- Mounting Hardware
- User Manual (this document)

Image 3.1: The Roadstar RS-2714BR car radio unit, its remote control, and product packaging.
4. Product Overview
4.1 Front Panel
The front panel features the main controls and display for operating the car radio.

Image 4.1: Front view of the Roadstar RS-2714BR car radio, showing the white LED display, illuminated control buttons, USB ports, and Micro SD slot.
4.2 Rear Panel and Side View
The rear panel provides all necessary connections for power, speakers, and external audio devices. The side view illustrates the mounting points.

Image 4.2: Rear view of the car radio, highlighting the RCA outputs and the standard ISO connector for power and speaker wiring.

Image 4.3: Side view of the car radio, illustrating the metal mounting brackets and screw holes for secure installation.
5. Installation
5.1 Mounting
- Ensure the vehicle's battery is disconnected before starting installation.
- Insert the mounting sleeve into the dashboard opening. Bend the tabs outwards to secure it.
- Slide the radio unit into the mounting sleeve until it clicks into place.
5.2 Wiring Diagram
Refer to the following diagram for correct wiring connections. Incorrect wiring can cause damage to the unit or vehicle.

Image 5.1: Detailed wiring diagram located on the unit's chassis, showing connections for power, ground, antenna, and speakers.
- Yellow Wire (B+): Connect to the car battery's constant 12V supply.
- Red Wire (ACC): Connect to the car's ignition switch (switched 12V).
- Black Wire (GND): Connect to the car chassis (ground).
- Blue Wire (ANT): Connect to the automatic antenna or amplifier remote turn-on.
- Speaker Wires: Connect to the corresponding positive (+) and negative (-) terminals of your car speakers. Ensure correct polarity.
- RCA Outputs: Connect to external amplifiers if desired.
6. Basic Operation
- Power ON/OFF: Press the U/MOD button to turn the unit on or off.
- Mode Selection: Press the U/MOD button repeatedly to cycle through available modes: FM Radio, USB, SD Card, Bluetooth, AUX.
- Volume Control: Rotate the central knob to adjust the volume level.
- Mute: Press the MUTE button to temporarily silence the audio. Press again to restore.
7. Radio Operation (FM)
- Select FM Mode: Press the U/MOD button until FM mode is selected.
- Automatic Scan: Press and hold the BND button to automatically scan and store strong stations.
- Manual Tuning: Press the |<< or >>| buttons briefly to fine-tune the frequency.
- Preset Stations: Use buttons 1-6 to select stored preset stations. To store a station, tune to the desired frequency, then press and hold one of the preset buttons (1-6) until you hear a beep.
8. USB/SD Card Operation
- Insert USB/SD: Insert a USB drive into the USB port or an SD card into the Micro SD slot. The unit will automatically switch to USB/SD mode and begin playback.
- Play/Pause: Press the 1/►II button to play or pause playback.
- Next/Previous Track: Press the >>| or |<< buttons to skip to the next or previous track.
- Repeat/Random: Press the 3/RPT button for repeat options (e.g., repeat one, repeat all). Press the 4/RDM button for random playback.
9. Bluetooth Operation
- Pairing:
- Switch the car radio to Bluetooth mode using the U/MOD button. The display will show "BT".
- On your mobile device, enable Bluetooth and search for available devices.
- Select "RS-2714BR" from the list. If prompted for a password, enter "0000".
- Once paired, the unit will confirm the connection.
- Audio Streaming: Play audio from your paired device. Use the radio's controls (|<<, >>|, 1/►II) to control playback.
- Call Handling:
- Answer Call: Press the BND button (often doubles as answer/end call) to answer an incoming call.
- End Call: Press the BND button again to end a call.
10. Audio Settings
- EQ (Equalizer): Press the EQ button on the remote control to cycle through preset equalizer modes (e.g., Pop, Rock, Classic, Flat).
- Bass/Treble/Balance: Press the central knob briefly to access audio settings. Rotate the knob to adjust Bass, Treble, and Balance (left/right speaker distribution).
11. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No power | Incorrect wiring; Blown fuse; Vehicle battery low | Check power and ground connections; Replace fuse; Check vehicle battery. |
| No sound | Speaker wires disconnected; Volume too low; Mute activated | Check speaker connections; Increase volume; Deactivate mute. |
| USB/SD not playing | Unsupported file format; Corrupted media; Incorrectly inserted | Ensure files are MP3/WMA; Try different media; Reinsert USB/SD card. |
| Bluetooth not connecting | Not in pairing mode; Device too far; Incorrect password | Ensure radio is in BT mode; Bring device closer; Use password "0000". |
12. Specifications
| Model | RS-2714BR |
| Brand | Roadstar |
| Output Power | 4 x 55 Watts RMS |
| Display | White LED |
| Connectivity | Bluetooth, USB (1 Charger, 1 Player), Micro SD, Auxiliary (AUX), RCA Outputs |
| Hardware Interface | Bluetooth, Secure Digital Card, MicroSD, USB |
| Compatible Devices | Smartphones, USB devices, SD cards, external audio players via AUX input |
| Audio Output Mode | 4 channel stereo |
| Color | Black |
| Product Dimensions | 20 x 16 x 9 cm |
| Product Weight | 490 g |
13. Maintenance
- Cleaning: Use a soft, dry cloth to clean the unit's surface. Do not use liquid or aerosol cleaners.
- Fuse Replacement: If the unit does not power on, check the fuse located at the rear of the unit. Replace it with a fuse of the same rating (e.g., 10A).
- Storage: If storing the vehicle for an extended period, consider disconnecting the car battery to prevent drain.
14. Warranty and Support
This Roadstar RS-2714BR unit comes with a 12-month warranty from the date of purchase, covering manufacturing defects. Please retain your proof of purchase for warranty claims.
For technical support or warranty inquiries, please contact your authorized Roadstar dealer or visit the official Roadstar website for contact information.





