4 Reasons Why Does My Car Radio Turn On By Itself?

Many drivers have experienced the frustrating phenomenon of their car radio turning on by itself. While the cause of this problem is not yet known, there are a few possible explanations. 

This mysterious problem can be incredibly frustrating, and it’s hard to know what to do when your car radio starts playing on its own. 

In short, the first reason for this issue is a wiring problem. Another possibility is that there is a problem with the radio’s circuitry. Finally, a loose battery wire could also be the culprit.

Keep reading because I’ll explore some of the possible causes of this problem and offer some solutions that might help you get your car radio back under your control.

Why Does My Car Radio Turn On By Itself?

After doing some research I found the top 4 reasons people’s car radios turn on by themselves:

1. A Faulty Or Damaged Audio System

If your car’s audio system is damaged, it could be the cause of your radio turning on by itself.

Check for any physical damage to your car stereo and look for any loose wires that could be causing a short circuit.

2. Loose Battery Wire

The most notable symptom of a loose battery wire is that the car stereo will turn on by itself, even when the car is turned off.

This problem is usually caused by a bad connection between the positive and negative wires of the car battery.

3. A Problem With Your Car’s Electrical System

If your car’s electrical system is malfunctioning, it could be the cause of your radio turning on by itself.

This is particularly likely if you’ve been experiencing other electrical problems with your car, such as power windows that won’t stay up or down, or interior lights that turn on and off by themselves.

4. Interference From A Nearby Radio Station

If there’s a strong radio signal coming from a nearby station, it could be causing your car radio to turn on by itself.

This is most likely to happen if you live in an area with a lot of FM radio stations.

How To Fix A Car Stereo That Keeps Turning Itself On?

Now that we know some of the possible causes of a car radio turning on by itself, let’s look at some solutions that might help.

1. Use A Radio Frequency Blocker

When you block the radio frequencies that your car stereo is picking up, it won’t be able to turn on by itself. You can buy a blocker at online electronics stores.

2. Change The Code On Your Remote

If you have a remote for your car stereo, you can usually change the code.

This will stop it from turning on if someone else’s remote happens to be the same frequency as yours.

3. Unplug Your Stereo When You’re Not Using It

If you’re not going to be using your car stereo for a while, unplug it from the power source.

This will prevent it from turning on by itself or being turned on by someone else.

4. Use A Physical Barrier

You can put a physical barrier between your car stereo and the source of the radio frequencies. That will stop the radio waves from reaching your stereo and turning it on.

5. Check For Loose Wires

Sometimes, a car stereo will turn on by itself because of loose wires. Make sure all the wires are connected tightly and securely.

If you’re not sure how to do this, take your car to a mechanic or an electronics store.


If you’re facing this issue, don’t worry, there are a few things you can do to fix it. Try one of the solutions above and see if it works for you.

If not, take your car to a mechanic or an electronics store for further assistance. I hope you found this article helpful.


Can a stereo turn on by itself?

A car stereo can turn on by itself if there’s an issue with the wiring, or if the stereo is faulty.

If your car stereo turns on by itself, it’s best to take it to a mechanic or a car stereo specialist to get it checked out.

Why does my radio keep turning off when I turn it up?

This is because of the loose front panel or an issue with the wiring.