Introduction
The RetroSound Laguna Radio Stereo AM/FM (Model LAC-M1-215-03-73) is designed to integrate modern audio technology into classic vehicles. This unit features an AM/FM RDS tuner, built-in Bluetooth for hands-free calling and audio streaming, and a powerful Mosfet amplifier. This manual provides detailed instructions for installation, operation, and maintenance to ensure optimal performance and longevity of your device.
What's in the Box
Please verify that all components are present before beginning installation.
- RetroSound Laguna Radio Unit
- Modular Mounting Brackets
- Mounting Bezel/Faceplate
- Plastic Knobs
- Bluetooth Microphone
- Mounting Strap (hardware included)
Features Overview
- AM/FM RDS Tuner: Features 30 programmable presets for easy access to your favorite stations.
- Built-in Bluetooth (Version 5.0): Enables hands-free calling and high-quality audio streaming. Includes a dedicated microphone.
- Auxiliary Input: Rear-mounted input for connecting portable audio devices.
- Selectable Tuner Frequencies: Supports USA, EUR, AUS, JAP, and RUS frequency bands.
- Integrated Amplifier: Built-in 275-watt (peak power) Mosfet amplifier, delivering 18 watts RMS x 4 channels.
- Modular Mounting: Designed for flexible installation in various vehicle dashboards.
- Non-volatile Memory: Retains settings even when power is disconnected.
Setup and Installation
Installation of the RetroSound Laguna radio requires assembly. It is recommended to consult a professional if you are unfamiliar with car audio installations.
1. Mounting the Radio Unit
The Laguna radio utilizes a modular design for flexible mounting. The main unit can be secured using the provided mounting strap and InfiniMount brackets.

Image: Rear view of the RetroSound Laguna radio unit, highlighting the anchor point for the 8.5-inch mounting strap. Hardware for attachment is included.

Image: The patented InfiniMount brackets. These brackets allow for versatile positioning of the radio shafts at various angles to fit different dashboard configurations.
Attach the mounting strap to the anchor point on the rear of the radio unit using the supplied hardware. Use the InfiniMount brackets to secure the radio chassis within the dashboard opening, adjusting them to achieve the desired shaft angle.
2. Installing Knob Shafts and Faceplate

Image: The included knob shafts, which connect to the radio unit and allow for attachment of the plastic control knobs.
Once the main unit is secured, connect the knob shafts to the front of the radio chassis. Position the mounting bezel/faceplate over the shafts and secure it. Finally, attach the plastic control knobs to the shafts.
3. Connecting the Bluetooth Microphone

Image: The external Bluetooth microphone with its cable and clip, designed for clear hands-free communication.
Plug the Bluetooth microphone into the designated input on the radio unit. Route the microphone cable to a suitable location in the vehicle, such as near the sun visor or rearview mirror, ensuring it is positioned for optimal voice pickup and does not obstruct driving.
4. Wiring Connections
Connect the power, ground, speaker, and antenna wires according to your vehicle's wiring diagram and the radio's wiring harness instructions. Ensure all connections are secure and properly insulated to prevent short circuits.

Image: The main RetroSound Laguna radio unit, showing various wiring connections at the rear for power, speakers, and other inputs.
Operating Instructions
1. Power On/Off and Volume
Press the Power/Volume knob to turn the unit on or off. Rotate the knob clockwise to increase volume and counter-clockwise to decrease volume.
2. AM/FM Radio Operation
- Band Selection: Press the Band button to cycle through AM and FM bands.
- Tuning: Use the Tuning knobs or Seek buttons to find radio stations.
- Presets: To save a station, tune to the desired frequency, then press and hold a Preset button until you hear a confirmation beep. To recall a preset, simply press the corresponding button. The unit supports 30 presets.
- RDS (Radio Data System): When available, RDS will display station information such as song title or artist.
- Tuner Frequencies: To change the tuner region (USA/EUR/AUS/JAP/RUS), refer to the system settings menu.
3. Bluetooth Operation
- Pairing:
- Ensure Bluetooth is enabled on your mobile device.
- On the radio, navigate to the Bluetooth menu (refer to your specific model's button layout for menu access).
- Select "Pair Device" or similar option.
- On your mobile device, search for available Bluetooth devices and select "RetroSound Laguna" (or similar name).
- Confirm pairing if prompted.
- Audio Streaming: Once paired, audio from your mobile device will stream wirelessly to the radio. Use your device or the radio controls (if supported) to play, pause, skip tracks.
- Hands-Free Calling: When a call comes in, the radio will mute audio and display caller information. Use the radio controls to answer or end calls. Speak into the external microphone for clear communication.
4. Auxiliary Input
Connect any portable audio device (e.g., MP3 player, smartphone) to the rear auxiliary input using a 3.5mm audio cable. Select the AUX source on the radio to play audio from the connected device.
Maintenance
- Cleaning: Use a soft, dry cloth to clean the radio's faceplate and knobs. Avoid abrasive cleaners or solvents, which can damage the finish.
- Connections: Periodically check all wiring connections to ensure they are secure and free from corrosion.
- Software Updates: Check the RetroSound website for any available firmware updates for your model.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No Power | Blown fuse, incorrect wiring, loose connection. | Check vehicle fuses and radio fuse. Verify power and ground connections. Ensure wiring is correct. |
| No Sound | Volume too low, mute activated, incorrect source selected, speaker wiring issues. | Increase volume. Check if mute is active. Select correct audio source (AM/FM, Bluetooth, AUX). Inspect speaker wiring for proper connection. |
| Bluetooth Not Connecting | Device not in pairing mode, radio not in pairing mode, interference, previously paired device connected. | Ensure both devices are in pairing mode. Delete previous pairings on your phone. Try restarting both devices. Move closer to the radio. |
| Poor Radio Reception | Antenna not connected, damaged antenna, weak signal area. | Check antenna connection. Inspect antenna for damage. Try tuning to a stronger station or moving to a different location. |
Specifications

Image: Diagram illustrating the dimensions of the RetroSound Laguna radio unit: 4.34 inches (110 mm) wide, 4 inches (100 mm) deep, and 2 inches (51 mm) high.
- Model Number: LAC-M1-215-03-73
- Product Dimensions (Packaging): 12 x 5 x 12 inches
- Unit Dimensions (Chassis): Approximately 4.34" (110 mm) W x 4" (100 mm) D x 2" (51 mm) H
- Item Weight: 4 pounds
- Brand: RetroSound
- Connectivity Technology: Bluetooth (Version 5.0)
- Tuner Technology: AM, FM (RDS)
- Power Source: Corded Electric (Vehicle 12V DC)
- Radio Bands Supported: AM/FM
- Amplifier: Built-in 275-watt (peak power) Mosfet amplifier (18 watts RMS x 4 channels)
- Special Feature: Portable (referring to modular design for flexible installation)
- Compatible Devices: Smartphone
- UPC: 665415040258
Warranty and Support
For warranty information and technical support, please refer to the documentation included with your purchase or visit the official RetroSound website. Keep your proof of purchase for warranty claims.
Manufacturer: Retro Manufacturing





