Product Description
Mark II
Upgrade your classic car with Out Of Sight Audio’s Mark 2 Hidden Bluetooth Receiver—a 4-channel system delivering 75W x 4 amplification for immersive sound. With 4 switched inputs, 4-8 Ohm speaker support, and 12-24V DC compatibility (positive or negative earth), this powerful hidden Bluetooth receiver lets you stream music wirelessly while preserving your car’s classic look—no radio required!
Mark 2 – Hidden Bluetooth Receiver
Premium 4-Channel Bluetooth Audio for Classic Cars
Take your classic car’s audio experience to the next level with the Mark 2 Hidden Bluetooth Receiver by Out Of Sight Audio. Designed for superior sound clarity, this discreet 4-channel Bluetooth receiver delivers 75W x 4 amplification, allowing you to power multiple speakers for an immersive audio experience—all without needing a working radio!
Key Features & Benefits:
4-Channel Output – 75W x 4 for high-quality sound
4 Switched Inputs – Connect multiple audio sources
12-24V DC Compatibility – Works with various classic vehicles
Positive & Negative Earth Support – Broad electrical compatibility
4-8 Ohm Speaker Support – Perfect for classic car audio systems
No Radio Required – Stream music directly from your smartphone, MP3 player, or tablet
Hidden Installation – No dash modifications needed—preserve your car’s classic look
4 Switched Inputs – Connect multiple audio sources
12-24V DC Compatibility – Works with various classic vehicles
Positive & Negative Earth Support – Broad electrical compatibility
4-8 Ohm Speaker Support – Perfect for classic car audio systems
No Radio Required – Stream music directly from your smartphone, MP3 player, or tablet
Hidden Installation – No dash modifications needed—preserve your car’s classic look
Perfect for classic car enthusiasts, the Mark 2 allows for a more powerful and dynamic sound experience compared to the Mark 1. Upgrade your classic car’s audio seamlessly today!
Out Of Sight Audio Mark 2 — A High-Output Upgrade for Classic Car Sound
For many classic car enthusiasts, maintaining original appearance doesn’t mean sacrificing modern performance — especially when it comes to audio. The Out Of Sight Audio Mark 2 speaker system, offered by Vintage Car Radio, strikes that perfect balance: it delivers exceptional sound quality without compromising the vintage aesthetic of your classic vehicle.
Whether you’re restoring a ’60s muscle car, a ’70s cruiser, or any classic with a factory-style radio cutout, the Mark 2 brings modern audio performance to an era that never anticipated it.
What Makes the Mark 2 Special?
Traditional vintage radios and stock speakers were designed when AM broadcasts and low-power music sources dominated the dashboard. Today’s mobile audio expectations — rich bass, clear mids, and crisp highs — require components that can handle more power and deliver a fuller frequency response.
The Out Of Sight Audio Mark 2 system accomplishes this with precision engineering aimed specifically at classic cars:
• Hidden, High-Performance Components
The Mark 2 system is designed to be installed out of view — under seats, behind interior panels, or inside speaker grilles — preserving the original look of your dash and cabin while transforming your soundstage.
• Wide Frequency Response
Unlike era-correct speakers that thin out above 5kHz and bottom-out below 100Hz, the Mark 2 produces clean highs and solid bass extension. This means your favorite rock anthem, smooth jazz, or podcast comes through with fidelity you never thought possible from a classic vehicle.
• Optimized for Street Sound
Classic cars have unique cabin acoustics due to shape, seating, and materials. The Mark 2 was tuned with this in mind — delivering punch where it matters and reducing distortion at highway speeds.
• Quality Build & Reliability
Every unit sold by Vintage Car Radio undergoes rigorous quality control. From the cones and surrounds to the mounting hardware, the system is built to last — just like the classic cars it accompanies.
Installation That Respects Classic Interiors
One of the biggest challenges in classic car audio upgrades is preserving originality. Many enthusiasts are hesitant to cut metal or alter dash panels. The Mark 2 avoids that entirely.
The system can be installed:
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Behind original speaker grilles that appear stock
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Under seats or in custom locations
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Using factory mounting points
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With minimal modification to interior trim
Vintage Car Radio provides detailed instructions and support to help both DIYers and professional installers get the best results without altering bodywork or trim.
How It Sounds in Real Cars
Owners consistently report a transformation in audio clarity and presence:
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Clear vocals without muddiness
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Tight, controlled bass that doesn’t rattle panels
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Dynamic range that handles everything from classical to hip hop
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Improved stereo imaging, making music feel more immersive
Because the Mark 2 is optimized for use with modern head units or period-correct radios paired with hidden modern amplifiers, it plays well in retro resto builds and custom interiors alike.
Why Classic Car Enthusiasts Love It
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Authentic look maintained – no modern speakers visible in the dash
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Modern audio performance – finally hear music the way it was recorded
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Built for cruising – intelligible audio even at cruising speeds
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Great value for quality – better performance than many aftermarket speaker upgrades
Whether you’re headed to a car show or cruising Woodward Avenue on a Sunday, the Out Of Sight Audio Mark 2 system elevates your listening experience without taking away from your classic car’s character.
Final Thoughts
The Out Of Sight Audio Mark 2 is more than just a speaker upgrade — it’s a solution for classic car owners who refuse to choose between vintage style and serious sound quality. Sold by Vintage Car Radio, it’s an ideal choice for restorations and custom builds where audio performance matters just as much as authenticity.
Ready to hear your music the way it was meant to be heard — even in a classic ride? The Mark 2 might be the most important audio upgrade you make for your vintage vehicle.
