Kia Soul: How vehicle audio works - Audio system - Features of your vehicleKia Soul: How vehicle audio works

Kia Soul 2014-2019 PS Owner's Manual / Features of your vehicle / Audio system / How vehicle audio works

AM and FM radio signals are broadcast from transmitter towers located around

AM and FM radio signals are broadcast from transmitter towers located around your city. They are intercepted by the radio antenna on your vehicle.

This signal is then processed by the radio and sent to your vehicle speakers.

However, in some cases the signal coming to your vehicle may not be strong and clear.

This can be due to factors, such as the distance from the radio station, closeness of other strong radio stations or the presence of buildings, bridges or other large obstructions in the area.

AM broadcasts can be received at greater distances than FM broadcasts. This is

AM broadcasts can be received at greater distances than FM broadcasts. This is because AM radio waves are transmitted at low frequencies.

These long distance,low frequency radio waves can follow the curvature of the earth rather than travelling straight. In addition, they curve around obstructions resulting in better signal coverage.

FM broadcasts are transmitted at high frequencies and do not bend to follow the

FM broadcasts are transmitted at high frequencies and do not bend to follow the earth's surface. Because of this, FM broadcasts generally begin to fade within short distances from the station. Also, FM signals are easily affected by buildings, mountains, and obstructions. This can lead to undesirable or unpleasant listening conditions which might lead you to believe a problem exists with your radio. The following conditions are normal and do not indicate radio trouble:

  • Fading - As your vehicle moves away from the radio station, the signal will weaken and sound will begin to fade. When this occurs, we suggest that you select another stronger station.
  • Flutter/Static - Weak FM signals or large obstructions between the transmitter and your radio can disturb the signal causing static or fluttering noises to occur. Reducing the treble level may lessen this effect until the disturbance clears.

  • Station Swapping - As an FM signal weakens, another more powerful signal near the same frequency may begin to play. This is because your radio is designed to lock onto the clearest signal. If this occurs, select another station with a stronger signal.
  • Multi-Path Cancellation - Radio signals being received from several directions can cause distortion or fluttering. This can be caused by a direct and reflected signal from the same station, or by signals from two stations with close frequencies. If this occurs, select another station until the condition has passed.

Using a cellular phone or a two way radio

When a cellular phone is used inside the vehicle, noise may be produced from the audio system. This does not mean that something is wrong with the audio equipment. In such a case, try to operate mobile devices as far from the audio equipment as possible.


When using a communication system such as a cellular phone or a radio set inside the vehicle, a separate external antenna must be fitted. When a cellular phone or a radio set is used with an internal antenna alone, it may interfere with the vehicle's electrical system and adversely affect safe operation of the vehicle.


Do not use a cellular phone while driving. Stop at a safe location to use a cellular phone.


  • Do not stare at the screen while driving. Staring at the screen for prolonged periods of time could lead to traffic accidents.
  • Do not disassemble, assemble, or modify the audio system. Such acts could result in accidents, fire, or electric shock.
  • Using the phone while driving may lead to a lack of attention of traffic conditions and increase the likelihood of accidents. Use the phone feature after parking the vehicle.
  • Heed caution not to spill water or introduce foreign objects into the device. Such acts could lead to smoke, fire, or product malfunction.
  • Please refrain from use if the screen is blank or no sound can be heard as these signs may indicate product malfunction. Continued use in such conditions could lead to accidents(fires, electric shock) or product malfunctions.
  • Do not touch the antenna during thunder or lightening as such acts may lead to lightning induced electric shock.
  • Do not stop or park in parking- restricted areas to operate the product. Such acts could lead to traffic accidents.
  • Use the system with the vehicle ignition turned on. Prolonged use with the ignition turned off could result in battery discharge.


  • Using the audio system while driving could lead to accidents due to a lack of attention to external surroundings. First park the vehicle before operating the device.
  • Adjust the volume to levels that allow the driver to hear sounds from outside of the vehicle. Driving in a state where external sounds cannot be heard may lead to accidents.
  • Pay attention to the volume setting when turning the device on. A sudden output of extreme volume upon turning the device on could lead to hearing impairment. (Adjust the volume to a suitable levels before turning off the device.)
  • Turn on the car ignition before using the audio system Do not operate the audio system for long periods of time with the ignition turned off as such operations may lead to battery discharge.
  • Do not subject the device to severe shock or impact. Direct pressure onto the front side of the monitor may cause damage to the LCD or touch screen.
  • When cleaning the device, make sure to turn off the audio system and use a dry and smooth cloth. Never use tough materials, chemical cloths, or solvents (alcohol, benzene, thinners, etc.) as such materials may damage the device panel or cause color/quality deterioration
  • Do not place beverages close to the audio system. Spilling beverages may lead to system malfunction.
  • In case of product malfunction, please contact your place of purchase or After Service center.
  • Placing the audio system within an electromagnetic environment may result in noise interference.
  • Prevent caustic solutions such as perfume and cosmetic oil from contacting the dashboard because they may cause damage or discoloration.
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