My car speakers produce no sound. What can I do?

If your car speakers produce no sound, the problem may be due to the car stereo, amplifier, speaker cables or settings.

There are a few things you can check before we proceed with troubleshooting or a possible service case.

1. Check the car stereo’s settings

Start by checking that the car stereo is switched on and the correct audio source is selected.

Also check that:

• The volume is set to a suitable level.

• Mute is not enabled.

• Balance and Fader are not set to send the sound to other speakers.

• Any settings for external amplifiers or audio outputs are correctly enabled.

If you use a DSP, also check that the correct signal is sent to the speakers.

2. Check whether the speakers are driven by an amplifier

If the speakers are connected to a separate amplifier, check that it switches on as it should.

Check whether any indicator is lit on the amplifier and what colour it is.

Many amplifiers have separate Power and Protect indicators. If the amplifier shows Protect, it may have activated its protection mode.

If the speakers are connected directly to the car stereo, move on to the next step.

3. Check the speaker cables

Switch off the system before checking the connections.

Check that the speaker cables are securely connected at both the speakers and the car stereo or amplifier.

Also check that:

• The cables are in the correct terminals.

• No loose wire strands are causing a short circuit.

• The cables have no visible damage.

• The speakers are connected according to the manufacturer’s instructions.

4. Check the speakers’ impedance

If the speakers are driven by a separate amplifier, check that their impedance is compatible with it.

Impedance is expressed in ohms (Ω), such as 2 or 4 ohms.

If several speakers are connected to the same channel, their total impedance can be affected by how they are wired.

Excessively low impedance can cause overloading and make the amplifier enter protection mode.

5. Check the amplifier’s settings

If you use a separate amplifier, check its settings.

Incorrect settings for Gain, HPF or LPF, for example, can make the speakers play very quietly or not at all.

Gain must not automatically be turned up to maximum.

If you are unsure about the settings, send a photo of the controls and we will help you check them.

6. If the problem persists

If the speakers still do not play, we need the following information:

• The speakers’ brand and model.

• The speakers’ impedance and rated power handling in watts.

• Which car stereo is used.

• Whether the speakers are driven directly by the car stereo or by a separate amplifier.

• The amplifier’s brand, model and number of channels, if used.

• Whether any indicator is lit on the amplifier and what colour it is.

• How the speakers are connected.

• Whether the problem affects all speakers.

• Whether the installation worked previously.

• Whether additional batteries are used in the installation.

Please attach clear photos of:

• The speaker cable connections at the amplifier, if used.

• The speaker cable connections at the speakers.

• The amplifier’s settings.

• The amplifier’s ground point, if the problem also suggests a power supply fault.

With this information, we can help you further and assess whether additional troubleshooting or servicing is needed.