Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

iTechGuides is reader-supported. When you buy through links on our site, we may earn an affiliate commission. As an Amazon Associate I earn from qualifying purchases. Learn more

Yes—if your stereo has a compatible audio input, you can connect a Bluetooth music receiver and play audio from a phone or tablet through the existing speakers. Check the stereo’s input labels and manual first, then match the receiver’s output and cable to that input.

What you need to check first

Find an available audio input on the stereo and confirm its purpose in the manual. RCA jacks are not automatically inputs: look for labels that identify an input, and check the manual if the labeling is unclear. Common line-level inputs include AUX, CD, Tape, and Line; the maker’s guide to Bluetooth receiver connections cautions against connecting a standard receiver output to PHONO. Verify the guidance against your stereo’s documentation.

Then check the connector. A Bluetooth receiver with RCA audio output can connect to compatible RCA inputs. A receiver with a 3.5 mm output may need a 3.5 mm-to-RCA stereo cable. TP-Link documents both connection types for its HA100 Bluetooth Music Receiver, but marks that model end of life; it is an example of the connection approach, not a current product recommendation. TP-Link HA100 product information

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

Connect a Bluetooth receiver for phone-to-stereo playback

  1. Choose a Bluetooth music receiver whose audio output matches the stereo’s confirmed audio input.
  2. Connect the receiver’s audio output to that input. For RCA, match red with red and white with white, as Philips instructs in its stereo connection guidance.
  3. Power the receiver according to its manufacturer’s instructions. Check the listing or manual for power requirements and included cables or adapters.
  4. Pair your phone or tablet with the receiver, then select the stereo input you used. Pairing steps and input-selection labels vary by equipment, so follow the respective manuals.

Once connected, the receiver acts as a Bluetooth source for the stereo. TP-Link describes the HA100 category as streaming music from a phone or tablet to a stereo or standalone speaker; the actual setup depends on the receiver and stereo you choose. TP-Link HA100 product information

#1 Best Overall
Esinkin Bluetooth Audio Adapter for Music Streaming Sound System
  • Listen music wireless: Connect with computer speakers, home stereo systems or other speaker systems via the 3.5 mm or RCA cable, then pair with the Bluetooth audio devices such as smartphones or tablet for streaming music.
  • Easy setup and automatic reconnect: There is a big bluetooth symbol button in bluetooth receiver middle. Pair your bluetooth device to this adapter with a single button press. Click once means Bluetooth Connect/Disconnect. Hold the botton 3 second mean ON/OFF. It can reconnect automatically with the previously paired device.
  • Wireless range: Indoors(without obstacles) connect rang up 30-40 ft (10-12 m).
  • Works with most device: Bluetooth enabled device including smartphones, tablets, computers, laptops upon and any powered PC speakers, home stereo systems and A/V receivers.
  • NOTE: This adapter doesn't have built-in battery, power by AC to DC power adapter or USB cable. This product is a bluetooth receiver ONLY, not a bluetooth transmitter. Only to give Bluetooth capabilities to an existing stereo / powered speaker / PA. If you have any problems, please contact us at any time by Amazon Order, and we will speed up the process to resolve the issue.

Choose a receiver or transmitter based on audio direction

For playing phone audio through the old stereo’s speakers, buy a Bluetooth receiver: it takes audio wirelessly from the phone and sends it to the stereo’s input. A Bluetooth transmitter is for the reverse direction—sending audio from the stereo to Bluetooth headphones or wireless speakers.

The transmitter setup documented by Sony connects a receiver’s AUDIO OUT jacks to the transmitter’s AUDIO IN jacks, so the stereo system needs a suitable audio output. Sony’s transmitter connection instructions

Rank #2
Bluetooth Receiver for Home Stereo, AUX RCA to Bluetooth Adapter
  • SEAMLESS WIRELESS MUSIC STREAMING: Whether you want to upgrade your home stereo as a Bluetooth receiver for home stereo, breathe new life into an old system using it as a Bluetooth adapter for old receiver, or add Bluetooth to your stereo receiver, this device is the key to a modern, wire-free listening setup.
  • MULTIFUNCTIONAL CONNECTIVITY: This Bluetooth adaptor for old stereo is a connectivity powerhouse. With support for RCA and 3.5mm jacks, it's compatible with 99% of speakers. From classic AV receivers to your car or home stereo, a Bluetooth audio receiver fits right in. Plus, its TF card music playback support gives you extra ways to enjoy your tunes.
  • FAST NFC QUICK CONNECT: Our Bluetooth to RCA adapter features a built-in NFC chip. Just bring your NFC-enabled smartphone or tablet close, and you're instantly connected. No more tedious manual pairing. It's the quickest way to start streaming your favorite music.
  • PREMIUM CRYSTAL CLEAR SOUND: Experience audio like never before. Our aux to Bluetooth adapter ensures crystal-clear sound. The 3D music playback mode creates a rich, surround-sound experience. Whether it's soft ballads or high-octane tracks, you get distortion-free sound, even at full volume.
  • EFFORTLESS AUTOMATIC PAIRING: Once you've set it up, the Bluetooth RCA receiver pairs automatically every time you power it on. No more struggling with wires or complex connections. Just turn it on and let the music play.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Support on Ko-Fi

Check these details before buying

  • Input versus output: Confirm that the stereo jack is an audio input for receiver-based phone playback, or an audio output if you intend to use a transmitter.
  • Connector match: Compare the stereo input with the receiver’s audio output. RCA and 3.5 mm are documented examples; a cable may be needed to connect them.
  • Power and accessories: Check the specific receiver’s power requirements and what comes in its package. Accessories vary by model.
  • Unusual or unclear connections: Consult the stereo manual or an audio technician rather than assuming compatibility from a jack’s appearance.

Compatibility is determined by the actual input, output, and connectors on your equipment. This general setup does not establish that every older stereo or unusual connector will work.

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

Quick Recap

Bestseller No. 1
Esinkin Bluetooth Audio Adapter for Music Streaming Sound System
Esinkin Bluetooth Audio Adapter for Music Streaming Sound System
Wireless range: Indoors(without obstacles) connect rang up 30-40 ft (10-12 m).
$23.99
SaleBestseller No. 3
Logitech Bluetooth Audio Adapter
Logitech Bluetooth Audio Adapter
Long-range wireless: Stream music from up to 20 meters (66 feet) away from your speakers
$23.99
Best Value
KAIY Bluetooth 5.4 Receiver for Home Stereo, Optical Low Latency
  • 🎶PREMIUM HOME AUDIO BLUETOOTH UPGRADE: Bluetooth receiver for home stereo transforms vintage home stereos or old-school receivers into a Bluetooth home stereo system! This plug-and-play stereo receiver with Bluetooth lets you stream music from your phone, tablet, or laptop to any wired audio system. The Bluetooth audio receiver is perfect for upgrading classic setups without sacrificing nostalgia.
  • ✨OPTICAL DIGITAL AUDIO·UNIVERSAL CONNECTIVITY FOR ANY SETUP: ✔️3-in-1 Outputs: Optical/RCA/3.5mm ports work with 99% of speakers and amplifiers.✔️USB Flash Drive Support: Play music directly from a USB flash drive without a Bluetooth connection. ✔️A practical Bluetooth adapter for stereo receivers, amplifiers, powered speakers, and other wired audio systems.
  • 🎼BLUETOOTH 5.4: Experience 33ft stable connectivity with the latest Bluetooth 5.4. Faster pairing, stronger signals, and zero audio delay. bluetooth rca receiver is perfect for parties, workouts, or relaxing at home without tangled wires.
  • 🔊IMMERSIVE HIFI STEREO SOUND: Stereo Bluetooth adapter powered by advanced wireless codecs, enjoy studio-quality audio with crisp highs, deep bass, and zero distortion.
  • ⭐SMART LCD DISPLAY & EASY CONTROLS: The Bluetooth adapter for home stereo's intuitive LCD screen shows volume levels, playback mode, and connection status at a glance. Adjust settings directly on the Bluetooth receiver for stereo, no need to fumble with your phone mid-song.
Rank #4
Auris Blume HD Long Range Bluetooth 5.3 Music Receiver Hi-Fi Audio Adapter with Audiophile DAC, LDAC & AptX HD for Home Stereo, AV Receiver or Amplifier
  • UPGRADE YOUR EXISTING STEREO SYSTEM: bluMe HD is a premium Hi-Fi Bluetooth adapter that streams the highest quality audio wirelessly from your phone, tablet or computer to any home stereo system. Easy setup, connects in seconds.
  • STUNNING HIGH QUALITY AUDIO: Featuring the latest Bluetooth 5.3 and support for Qualcomm aptX HD, aptX Low Latency, LDAC and AAC decoding, bluMe HD adds high definition Bluetooth to any home stereo system.
  • BEST-IN-CLASS SOUND: Built-in true Hi-Fi 384kHz/32-bit upsampling Audiophile Digital to Analogue Converter DAC allows bluMe HD to decode and play audio files in all their lossless glory.
  • LONG RANGE BLUETOOTH: Employs special circuitry and precision-tuned antenna to extend the wireless range to up to 100+ feet, providing glitch-free performance that works through multiple walls.
  • DIGITAL & ANALOG CONNECTIVITY: bluMe HD provides ultimate compatibility with your stereo equipment with Analog RCA and Digital Optical SPIDIF outputs. Also compatible with AUX inputs with included RCA to AUX cable.
Rank #3
Sale
Logitech Bluetooth Audio Adapter
  • Bluetooth Audio Adapter: Makes your speakers Bluetooth for streaming music from your smartphone or tablet
  • Multipoint Bluetooth connectivity: Simultaneously pair your smartphone and tablet and stream music from either one
  • Easy pairing and automatic re-pairing: Pair your device to the adapter once with a single button press and you're done
  • Long-range wireless: Stream music from up to 20 meters (66 feet) away from your speakers
  • Works with most speakers: Plugs into any powered PC speakers, home stereo systems and A/V receivers using RCA or 3.5 mm jacks

Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.