Ideal for Discreet Bluetooth Audio Installs
I was looking for a clean way to add Bluetooth to my setup without installing a bulky head unit — this little device delivered exactly that. It connects directly to my amplifier, no display, no unnecessary buttons — just solid wireless performance. Great for stealth installs in classic cars, marine setups, or even ATVs. The waterproof build and solid construction give me confidence it’ll last. Pairing is fast, and the audio quality is surprisingly clear. Highly recommended for anyone building a hidden Bluetooth audio system.

Receiver
blafili CAR Bluetooth 5.2 Receiver
Upgrade your vehicle audio with wireless Bluetooth streaming. blafili CAR connects to your amp through RCA output and works on 12V/24V systems—requires ACC/ignition trigger for operation.

Built for
your dash.
Hardwired 12V/24V install
Wire it to the head unit's RCA (aux) input and a switched ACC line — it pairs once and reconnects on every drive.
Dual RCA output
Left and right RCA leads feed the amp or head unit a clean line-level signal.
Bluetooth 5.2 streaming
Stable wireless audio from any phone, plus hands-free calling through the car speakers.
Plug into your gear.
| DEVICE | Works | Notes |
|---|---|---|
| Phones, tablets & computers (Bluetooth) | ✓ | Any Bluetooth source with SBC |
| USB-C audio from computer | ✕ | No USB audio input on this model |
| Powered speakers / amplifiers | ✓ | Line-level output — set amp volume as usual |
Nerdy by design.
- Additional Features
- Built-In Bluetooth, Music Streaming, RCA, Pandora, Compact Design
- Enclosure Material
- Polycarbonate (PC)
- Color
- black
- Outer Material
- PC
- AntennaDescription
- Radio
- Mounting Type
- Dashboard Mount
- Includes Remote
- No
- Installation Type
- Hardwired Power Input via ACC / GND / 12V/24V lines
- Connectivity Technology
- Bluetooth, Auxiliary
- Wireless Compability
- Bluetooth, Radio Frequency, 2.4 GHz Radio Frequency
- Bluetooth support?
- Yes
- Data Link Protocol
- Bluetooth Profiles: A2DP (Advanced Audio Distribution Profile), AVRCP (Audio/Video Remote Control Profile)
- Item Dimensions L x W x H
- 6"L x 4.6"W x 1"H
- Item Weight
- 128 Grams
Rated 4.5 by 38 owners.
✓ Verified purchaseEasy to install, no feedback or anything. Sounds really good so far. Have not tested range yet, but works great from inside car.
✓ Verified purchaseWorks great, using it with a 5 channel JL XDM amp and 7 band Clarion equalizer with Kicker 3 way 6x9 enclosed speakers and Kicker L7T shallow sub to make a completely standalone stereo system in my '22 F150 in order to not mess with the factory system and get way better sound quality and not cause warranty issues.
✓ Verified purchaseMounted my car amp on the boat, added this module, and now the system powers up when my phone plays audio. Volume and track changes are all on the phone. I wired it through a switch to turn it off when not needed. Reliable and quick to reconnect whenever I power the boat on.
✓ Verified purchaseI like that it fits directly into the amp (no extra deck required), the whole system is hidden inside. The chassis looks durable, well sealed, and should work under tough or wet environment.
✓ Verified purchaseThis unit is not very good. It clips frequencies which distorts the output making the music unintelligable
✓ Verified purchaseIt started out amazing.... and then broke.
I was using this with an amp to bypass a radio head unit, and it worked great for about 10 minutes, it connected easily and the remote wire would turn my amp on.
After a while though, the remote wire stopped working, and I had a hard time getting it to turn on.If it worked properly and hadn't died, I'd love it! It's really easy to use and just what I needed, but I can't recommend.
✓ Verified purchaseMy car only has an auxiliary port and I wanted to do a built-in Bluetooth for streaming my music. This has really done a great job of allowing me to convert my aux port into a Bluetooth. Installation is very simple. It works on multiple voltages and my phone paired up with it easily, and the Bluetooth has worked without issue. Really great for various projects that you may have where you want to add Bluetooth functionality to an audio system.
Write a review
Which box fits your rack?
| SPEC |
VIEWING
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|---|---|---|---|---|
| Price | $44.99 |
$109.00 |
$40.99 |
$21.99 |
| Best for | Factory & classic car stereos | Hi-fi stacks & home theater | Studios, PA & installers | First wireless upgrade for RCA stereos |
| Bluetooth | 5.2, A2DP, AVRCP | 5.1, A2DP, AVRCP | 5.1, A2DP, AVRCP | 5.2, A2DP, AVRCP |
| Codecs | aptX Adaptive, aptX HD, aptX, AAC, SBC | LDAC, aptX HD, aptX LL, aptX, AAC, SBC | aptX HD, aptX LL, aptX, AAC, SBC | aptX Adaptive, aptX HD, aptX, AAC, SBC |
| Audio I/O | RCA output (12V/24V hardwired) | Bluetooth & USB-C | XLR male ×1 | RCA |
| Power | Hardwired 12V/24V (ACC switched) | USB-C powered (5V) — no battery | Up to 16 hours | USB-powered — no battery |
| View | View | View |
Before you ask.
How to add Bluetooth to an old car stereo?
Wire the CAR receiver to the head unit's RCA (aux) input and a 12V-24V switched power line; pair your phone once and it reconnects on every drive.
What's the best 12V bluetooth receiver?
For hardwired installs, the blafili CAR covers 12V-24V systems with dual RCA output, hands-free calling and BT 5.2.
Does the blue remote trigger wire keep my amplifier on whenever the vehicle key is on?
No. The blue remote trigger wire is audio-activated, not ACC-switched. It outputs power only while Bluetooth audio is actively playing. This helps turn on your amplifier only when needed during music playback. If you want your amplifier to stay on continuously whenever the key is on, the amp remote wire should be connected to the vehicle’s ACC or ignition-switched circuit instead.
Why doesn’t my amp stay on for navigation prompts when no music is playing?
The blue remote trigger wire turns on only when Bluetooth audio is actively playing. In navigation-only use, short spoken prompts may not keep the amplifier awake the same way continuous music playback does. If you need the amplifier to remain on whenever the vehicle is on, use the vehicle’s ACC-switched remote circuit rather than relying on the audio-triggered blue wire.
I connected yellow to 12V and black to ground but nothing happens.
Please connect the ACC wire to switched 12V (ignition). Yellow+Black alone won’t turn it on.





