Car Radio Keeps Switching From AUX To Radio – Fix In 2024

As a fellow driver, I understand the frustration of dealing with a car stereo that keeps switching back and forth between the aux input and the radio. It disrupts the music experience, especially when you’re enjoying tunes from your phone or MP3 player.

Why Car radio keeps switching from Bluetooth to radio? Possible reasons include loose connections, frayed cables, interference from other electrical devices, and faulty audio jack or Bluetooth receiver.

Stay with us; this article looks at potential reasons for car aux radio issues and various solutions to this problem.

Why Does My Aux Keep Switching To Radio?

From what you’ve described, it sounds like there might be a loose connection inside the radio head or control panel. It may need to be removed and sent for repair, or you could consider replacing it with an aftermarket unit. Interestingly, I faced a similar issue with my boat last summer.

What Does Aux Mean In A Car? “Aux” in a car typically refers to the auxiliary input, a feature that allows you to connect external audio devices such as smartphones, MP3 players, or other audio sources to the car’s audio system. This enables you to play music or audio from the connected device through the car’s speakers.

Why Does My Aux Cord Keep Cutting Out?

A loose connection can result in intermittent audio signal disruptions. Additionally, dirt or damage in the car stereo’s audio input may cause similar issues. Cleaning the input with compressed air or a cotton swab and thoroughly inspecting it can help resolve these problems.

Causes Of Car Radio Switching From AUX To Radio:

If you’ve ever experienced your car radio switching from AUX to radio unexpectedly, you’re not alone. It can be quite frustrating, especially when you’re in the middle of enjoying your favorite playlist or podcast during a drive.

1. Loose Connections:

Why does my aux keep switching to the radio? Loose connections are a common issue causing a car stereo to switch from radio to aux. I’ve experienced this firsthand when my car’s audio system kept toggling between modes. It’s often due to loose wiring or a faulty auxiliary cable. If the connection drops, the radio may switch modes.

Loose Connections

2. Radio Interference:

I’ve encountered the frustration of my car stereo constantly switching from AUX to radio mode due to radio interference. It often happens when driving in areas with weak radio signals or near electronic devices like cell phones and laptops. These external signals can disrupt the AUX connection, causing the radio to take over.

3. Damaged AUX Cable:

Why does my aux keep cutting out? A broken AUX cable may be caused if the car radio repeatedly switches between radio and auxiliary modes. Wear and tear, accidental harm, or exposure to excessively high or low temperatures are all potential causes.

Damaged AUX Cable

Also Read: Car Radio Screen Flickering

4. Bluetooth Receiver:

A bad Bluetooth receiver may intermittently cause a car radio to switch between AUX and radio modes. Weak or unreliable Bluetooth connections between the device and the car’s audio system can trigger this issue. Consequently, the head unit may switch to the last FM frequency station.

Bluetooth Receiver

5. Faulty Audio System:

Aux only car stereo? If the audio jack isn’t working correctly, the automobile radio may switch from car stereo with aux audio or mode. It can result from an audio system’s software or hardware problem, such as a damaged audio jack or an audio control panel. In these situations, the radio can suddenly return to radio mode.

6. Automatic Station Switching Feature:

Some car audio systems have a feature that automatically searches for and switches to stations with the strongest signal. This can disrupt your transmission signals, especially if you’re using the AUX connection.

7. Incompatibility with the Audio Device:

Even though this issue is not very common, it may cause people switching problems. Your car radio may malfunction if you utilize unsupported gadgets with it.

People have occasionally mentioned running into this problem with their phones and iPods. Due to mismatched devices, you may also experience a similar aux-to-radio switching problem or .

Solutions For Car Radio Switching From AUX To Radio:

How To Fix Car Radio Switching From AUX To Radio? When I encountered my car radio frequently switching from AUX to radio, I delved into various solutions to address the issue. Here are some solutions to consider if you’re facing a similar issue.

1. Check The Connections:

Checking the connections between the AUX wire and the car’s audio system is one of the simplest ways to solve the issue. So, ensure the audio jack and the device’s audio output are securely connected to the Auxiliary cable. Replace the cable with a new one if it is damaged or weak.

Also Read: Radio Shuts Off When Put In Drive Or Reverse

2. Check For Radio Interference:

To solve the radio interference issue, try switching the car radio’s FM frequency to a less crowded station. Alternatively, you might avoid electrical devices like computers and cell phones that produce electromagnetic waves.

Interference can occasionally be reduced by utilizing a shielded AUX wire or installing an external antenna on the car radio.

3. Replace The AUX Cable:

If a damaged AUX cable causes the problem, replace it with a new one. When choosing an AUX cable, select a high-quality RCA cable with shielding to prevent interference and ensure a stable connection.

AUX Cable
  • Verify that the audio input device, such as your phone, is operating correctly. If possible, you might wish to test the aux with another audio input device, such as your computer.
  • Attempt switching out the aux cable.
  • To clear out the aux port, use a can of compressed air.
  • To clean out the aux port, use a cotton swab and rubbing alcohol.

4. Check Bluetooth Receiver:

Car radio with aux and Bluetooth? The Bluetooth connection between the device and the car’s audio system needs to be checked as a solution. Ensure the Bluetooth settings are set up correctly on the device and the vehicle.

 Bluetooth Receiver

Ensure that the device is within the audio system’s range in the car. If the issue doesn’t disappear, getting the Bluetooth receiver replaced or serviced by an expert could be required.

5. Move other Devices away from the Radio:

The interference caused by many electronic items near your car radio might be rather bad. As you may already know, most electronic products have radio and transmission wave capabilities.

6. Check The Audio System:

If the car radio keeps switching from AUX to radio mode due to a faulty audio system, it may require professional help to fix the problem. Bring your vehicle to a qualified mechanic or audio technician who can diagnose and repair the audio system’s hardware or software.

 Audio System

Because of this, switching your AUX station to the radio is straightforward in your automobile. You can avoid that by not carrying too many electronics in front of your car.

7. Check the Docking Connector:

You might need to examine your docking port if you use Apple gadgets (such as the iPod or iPhone) in your automobile. Radio switching is unaffected by the absence of an illumination wire on the car radio but is affected by the presence of a docking connector.

Source: Te Connectivity

Ensure the connector transmits audio when the gadget is connected to your automobile rather than just charging it. Your radio won’t be impacted if it’s in charging mode.

Also Read: Why Does My Car Radio Not Pick Up Stations

8. Replace Weak or Damaged Antenna:

Now that your car radio antenna is broken, it will undoubtedly impair how the AUX input-output functions, primarily due to the close ties between these linkages. Therefore, if possible, replace your broken antenna.

Source: crutchfield

Why Does My Car Radio Keep Changing Stations?

Your car radio might change channels due to a damaged antenna, TRAF button interference, or electrical disturbance from other devices. To fix it, consider replacing the antenna, adjusting settings, or relocating electronics. If unsure, seek professional help.

Auxiliary Not Working In Car?

Verify that the input device, such as your phone, is operating correctly. If possible, you might wish to test the aux with another input device, such as your computer. Attempt switching out the aux cable. To clear out the aux port, use a can of compressed air.

How To Fix Aux Port In Car?

Ensure the AUX cable isn’t frayed or broken. Test with a different cable to rule out cable issues. Additionally, clean the AUX port meticulously as dust and debris can accumulate over time, disrupting communication. Use pressurized air or a small brush to clear any obstructions.

1. Why Does My Car Radio Keep Switching From Aux To Radio?

When your car radio frequently switches from aux to radio, it’s likely due to a loose connection inside the radio head or control panel. Repair or replacement with an aftermarket unit may be necessary.

2. Why Does My Aux Keep Going In And Out?

Intermittent aux connection issues are often caused by a dirty or damaged audio input on the car stereo. Cleaning the input and checking for damage can help resolve the problem.

3. Why Does My Car Radio Work Intermittently?

If your car radio works intermittently, it could be due to a blown fuse, bad wiring, or a loose connection. Ensure the responsiveness of radio controls and consider updates from the manufacturer.

4. How Do I Reset My Car Radio?

To reset your car radio, consult the owner’s manual for specific instructions. Typically, this involves pressing and holding the reset button or briefly disconnecting the car battery.

5. Why Is My Radio Keeping Changing Stations By Itself?

Car radio may change channels due to interference from electronics or stations, wrong tuner settings, or software errors.

6. How Do I Fix The AUX Input In My Car Stereo?

To fix car stereo AUX input:

  1. Check the cable connection for damage.
  2. Replace if needed.
  3. Ensure car stereo settings are configured for AUX input.

7. Why Does My AUX Cord Keep Going In And Out?

Why does my aux cord keep cutting out? AUX cord issues can stem from a loose or damaged connection or a dirty or broken port. Fix by replacing the cord or cleaning the port.

8. Why Does My Car Audio Keep Cutting Out?

Car audio may be cut out due to loose connections, damaged wiring or speakers, faulty amplifiers, or issues with the car’s battery or alternator. Repairing or replacing damaged parts can often resolve the issue.

9. Can A Faulty Battery Cause My Car Radio To Switch From AUX To Radio?

A weak battery can cause car electrical issues. Check and replace if needed. Other causes may also trigger the radio switching from aux to radio.

10. Is It Safe To Continue Driving If My Car Radio Keeps Switching From AUX To Radio?

Even though it doesn’t risk your safety, having your music cut off frequently can be annoying. It is advised to address the problem immediately to stop it from worsening or harming your car’s audio system.


In conclusion, a car radio that keeps switching from AUX to radio mode can be a frustrating problem for drivers. Loose connections, radio interference, a faulty audio system, or a damaged AUX cable can cause the issue.

Fortunately, there are solutions to fix the problem, such as checking the connections, avoiding radio interference, checking the audio system, or replacing the AUX cable.

Following these solutions, drivers can enjoy uninterrupted music and a more pleasant driving experience.

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