1. Overview
The BOSS Audio Systems MR1308UABK is a single DIN, weather-proof marine stereo receiver designed for marine environments. It features Bluetooth connectivity for audio streaming and hands-free calling, along with USB, SD, and auxiliary inputs for versatile media playback. This unit is built to withstand marine conditions, offering reliable performance and sound quality.
Key Features
- Single-DIN Marine Mechless Receiver
- Bluetooth Connectivity for Audio Streaming and Hands-Free Calling
- Detachable Front Panel with UV Coating
- PC Board with Conformal Coating for weather protection
- USB Port for media playback and charging
- Auxiliary Input for external devices
- AM/FM Tuner
- Built-in Equalizer
- Pre-Amp Outputs
Image 1.1: Front view of the BOSS Audio Systems MR1308UABK Marine Stereo.
2. Setup and Installation
Before Installation
Before proceeding with installation, ensure the MR1308UABK is compatible with your vehicle or vessel. Professional installation is strongly encouraged to ensure proper and safe functionality.
- Determine Receiver Size: Research online fit guides to confirm the appropriate receiver size (single DIN or double DIN) for your vehicle's make, year, and model.
- Find Compatible Dash Kit: Identify a compatible dash kit that works with your vehicle and accommodates this receiver.
- Identify Necessary Accessories: You may need additional accessories such as a wiring harness, speaker harness, steering wheel control interface, antenna adapter, or satellite radio adapter/antenna.
- Contact Support: For further assistance, contact BOSS customer support.
Image 2.1: Guide for determining receiver compatibility and necessary accessories.
Package Contents
The MR1308UABK package typically includes:
- BOSS Audio Systems MR1308UABK Marine Stereo Unit
- Wiring Harness
- Mounting Hardware (keys)
- Wireless Remote Control
- Storage Bag for Detachable Faceplate
Image 2.2: Contents typically included in the MR1308UABK product box.
Physical Installation
The MR1308UABK features a compact design for easy installation into a single DIN opening. Ensure adequate space for the unit and its wiring connections.
Image 2.3: Dimensions of the MR1308UABK unit for installation planning. Installation Height: 2.0" / 51mm, Depth: 3.94" / 100mm, Width with Trim: 7.0" / 178mm.
Wiring Connections
Refer to the wiring diagram provided with your unit and consult a professional installer for correct connections. Key connections include power, ground, speaker outputs, and auxiliary inputs/outputs.
Image 2.4: Detailed view of the MR1308UABK front panel controls and rear panel connections. Front panel features include Track Forward, Push To Talk, Power/Source, Track Back, Call/End Call, Volume, DSP, EQ, Mute, LCD Screen, AUX, USB, and Detachable Face. Rear panel includes Radio Antenna input, Audio Output (RCA), ISO Connector, and Fuse.
3. Operation
Front Panel Controls
The front panel provides access to all primary functions. Refer to Image 2.4 for a visual guide to the controls.
- Power/Source Button: Press to turn the unit ON/OFF. Press briefly to cycle through available audio sources (FM, AM, USB, AUX, Bluetooth).
- Volume Knob: Rotate to adjust the audio output level.
- DSP/EQ Button: Access Digital Signal Processing and Equalizer settings.
- Mute Button: Temporarily silence the audio output.
- Track Forward/Back Buttons: Skip tracks in media playback or tune radio stations.
- Call/End Call Button: Manage Bluetooth phone calls.
- Push To Talk Button: Activate your smartphone's voice assistant via Bluetooth.
- USB Port: Connect USB devices for media playback or charging.
- AUX Input: Connect external audio devices using a 3.5mm cable.
- Detachable Face: The front panel can be removed for security.
Radio Operation (AM/FM)
To operate the radio:
- Press the Power/Source button until 'FM' or 'AM' is displayed.
- Use the Track Forward/Back buttons to manually tune or seek stations.
- Refer to the full user manual for details on saving preset stations.
Bluetooth Operation
The MR1308UABK supports Bluetooth for wireless audio streaming and hands-free calling.
- Pairing: Ensure Bluetooth is enabled on your mobile device. Select 'BT' as the source on the MR1308UABK. Search for available devices on your phone and select 'BOSS Audio MR1308UABK' (or similar). Enter '0000' if a PIN is required.
- Audio Streaming: Once paired, you can stream audio from your device to the stereo. Use the Track Forward/Back buttons to control playback.
- Hands-Free Calling: When a call comes in, press the Call/End Call button to answer. Press again to end the call.
- Voice Assistant: Press the Push To Talk button to activate your smartphone's voice assistant (e.g., Siri, Google Assistant).
Image 3.1: The MR1308UABK installed in a marine dashboard, illustrating wireless audio streaming capability.
USB and Auxiliary Input
Connect USB flash drives to the front USB port for MP3/WMA audio playback. Connect any audio device with a 3.5mm output to the front auxiliary input.
- USB Playback: Insert a USB flash drive into the USB port. The unit will automatically switch to USB mode and begin playing compatible audio files.
- Auxiliary Input: Connect your external audio device to the AUX input. Press the Power/Source button until 'AUX' is displayed. Control playback from your connected device.
4. Maintenance
To ensure the longevity and optimal performance of your MR1308UABK marine stereo, follow these maintenance guidelines:
- Cleaning: Use a soft, damp cloth to clean the unit's exterior. Avoid harsh chemicals or abrasive cleaners, which can damage the finish or UV coating.
- Detachable Faceplate: When not in use, remove the detachable faceplate and store it in the provided storage bag to protect it from theft, dust, and UV exposure.
- Conformal Coating: The internal PC board features a conformal coating for protection against moisture and corrosion in marine environments. While this provides enhanced durability, avoid direct exposure to high-pressure water sprays.
- Connections: Periodically check all wiring connections for corrosion or looseness, especially in saltwater environments.
5. Troubleshooting
If you encounter issues with your MR1308UABK, refer to the table below for common problems and their solutions.
| Problem | Possible Cause | Solution |
|---|---|---|
| No power | Blown fuse; incorrect wiring; vehicle battery issue. | Check the fuse on the unit and in the vehicle's fuse box. Verify all power and ground connections. Check vehicle battery voltage. |
| No sound | Volume too low; Mute activated; incorrect speaker wiring; incorrect source selected. | Increase volume. Deactivate Mute. Check speaker connections. Ensure the correct audio source is selected. |
| Bluetooth not connecting | Bluetooth not enabled on device; unit not in pairing mode; interference. | Ensure Bluetooth is active on your mobile device. Select 'BT' source on the stereo. Try unpairing and re-pairing the device. Move closer to the unit. |
| USB device not playing | Incompatible file format; damaged USB device; USB not properly inserted. | Ensure files are MP3/WMA format. Try a different USB device. Reinsert the USB device firmly. |
| Remote control not working | Dead battery; obstructed sensor; remote out of range. | Replace the remote control battery. Ensure a clear line of sight to the unit's IR sensor. Move closer to the unit. |
| SD Card slot not found or not working | Some product variations may not include an SD card slot despite being listed in general specifications. | Verify the physical presence of an SD card slot on your specific unit. If present, ensure the SD card is inserted correctly and contains compatible media files. |
6. Specifications
Below are the technical specifications for the BOSS Audio Systems MR1308UABK Marine Stereo:
| Feature | Specification |
|---|---|
| Model Number | MR1308UABK |
| Brand | BOSS Audio Systems |
| Product Dimensions (L x W x H) | 10.92 x 17.78 x 5.08 cm (4.3 x 7.0 x 2.0 inches) |
| Item Weight | 498.95 g (1.1 lbs) |
| Output Power | 200 Watts (Peak) |
| Number of Channels | 4 Channel |
| Audio Output Mode | Stereo |
| Connectivity Technology | Auxiliary, Bluetooth, USB |
| Connector Type | USB, SD Card, AUX |
| Supported Media Formats | MP3 Audio, WMA |
| Special Feature | Built-In Bluetooth, Detachable Front Panel, Weather-Proof |
| Control Method | Remote |
| Color | Black |
| UPC | 791489121569 |
7. Warranty and Support
Warranty Information
BOSS Audio Systems provides a 3-year platinum online dealer warranty for this product, provided the purchase is made through Amazon.com. It is recommended to register your product online after purchase to ensure warranty coverage.
Customer Support
For technical assistance, warranty claims, or further inquiries, please contact BOSS Audio Systems customer support. Contact information can typically be found on the official BOSS Audio Systems website or within the product packaging.
