Best Bluetooth FM Transmitters: Bring Some Flexible Sound into Your Old Car

The best Bluetooth FM transmitters to bring digital streaming music to older vehicles.

Best Overall

Guanda Bluetooth FM Transmitter

Best Value

Raxfly Bluetooth FM Transmitter

Honorable Mention

Imden Bluetooth FM Transmitter

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Wireless technology like Bluetooth has all but eliminated the need for cords when it comes to listening to music in your vehicle. Almost all modern cars and trucks come with stereo systems that can hook up to almost any smart device to play or stream music. For older vehicles, however, it’s a little different. Since many used vehicles were around before Bluetooth was a thing, they may lack a way to connect to a smart device, wireless or otherwise. This is where an FM transmitter is a useful purchase. If you find yourself wanting to listen to your favorite streaming playlists in your 1994 Mazda Miata, a Bluetooth FM transmitter will let you do just that and possibly more. Take a look at our handy guide to see what you need to know about today’s top transmitter choices.

Summary List

Our Methodology

We can’t put our own hands on every item available. In these instances, we put our collective experience in journalism, research, and prior product testing to use to make our product picks. Items that are used by our own staff may get earnest endorsements as well, but we’ll never accept fees or bonuses to sell you stuff we’re not actually excited about. Affiliate revenue is always disclosed.

The Drive aggregates reviews and research from all over the internet to figure out which products are worth buying. We also put out shopping guides to help you understand how to assess the value of these things on your own. Knowledge is horsepower!

Best Bluetooth FM Transmitters Reviews & Recommendations

Best Overall

Guanda Bluetooth FM Transmitter

Best Value

Raxfly Bluetooth FM Transmitter

Honorable Mention

Imden Bluetooth FM Transmitter

Most Versatile

Nulaxy Bluetooth Car FM Transmitter

Honorable Mention

Sumind Bluetooth FM Transmitter

Honorable Mention

Lencent Bluetooth FM Transmitter

Honorable Mention

GOgroove FlexSMART X2

Special Bonus Award

Arsvita Bluetooth 5.0 Cassette to Aux Adapter

Our Verdict on the Best Bluetooth FM Transmitters

Now that you know the finer points of picking out the best Bluetooth FM transmitters, it’s time to make your pick. For quality and performance, the Guanda Bluetooth FM Transmitter is a terrific pick overall. Working on a budget? Consider the value of the Raxfly Bluetooth FM Transmitter for its balance of utility and affordability. 

Key Features

Bluetooth Connectivity

Arguably, this is the very thing that makes an FM transmitter wireless. Bluetooth connectivity allows the device to connect to a smartphone without any cords. Be aware, however, there are a few FM transmitters that lack the Bluetooth addition, instead of relying on just a simple audio cable to connect the transmitter to the device.

USB Ports

If you want to charge devices on the go through a 12-volt outlet, built-in USB ports are a must. Large transmitters typically have one or two ports included in the body. Keep in mind that the type of USB ports included is important. Modern USB 3.0 and above ports are better for quick-charging the latest smart devices you may have.

Info Display

Modern audio systems do more than just play music; they also display helpful information about the music. For example, you can find the title, writer, and/or singer of the song from the display alone. Some FM transmitters can show this info on a built-in LCD or LED display. Others can also pipe this information onto the stereo display if it has the capability of reading/conveying this information. This capability will depend on the device itself since some Android phones and iPhones vary in compatibility. 

Bluetooth FM Transmitter Pricing

Don’t spend over $20. If you are, you’re getting ripped off.

FAQs

You’ve got questions. The Drive has answers. 

Q. How do FM transmitters work?

An FM transmitter acts like a basic radio transmitter, similar to high-powered versions radio stations use. It sends a signal to a specific frequency. On the other end, it connects wirelessly to a smart device so data is transferred without the need for a cord.

Q. What kinds of devices can connect to an FM transmitter?

Anything with an audio source and Bluetooth connectivity should work. Beyond smart devices, modern music players are typically compatible. Higher-end transmitters can also use expandable memory like SD cards so you can play music from the device itself.

Q. Will an FM transmitter drain the car’s battery?

This depends on the car itself. If the vehicle has an auto shut-off feature whenever the car is off, the battery should be just fine. If it lacks this feature, you may find the battery to be drained if the FM transmitter and stereo are left on overnight or while you are out.

Q. How is the sound quality with an FM transmitter?

No matter how good our car stereo is or how fancy your FM transmitter is, you’ll always lose some signal clarity and, therefore, audio integrity when using Bluetooth. It’s simply the nature of Bluetooth. A noise-canceling receiver will help. Remember: When it comes to electronics, you (almost always) get what you pay for.

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When she’s not at the keyboard, Noelle unwinds by exploring the northeast in her classic German sports car or custom Indian Scout. She’s written about the joy and hardships of vintage car ownership for Porsche Club of America’s e-Brake News. You can read some of her articles about the motorcycle lifestyle in an issue of MotoSpirit magazine.