Tuning your Pioneer Audio System

Pioneer Audio System Is Buzzing or Whining

Confirmed Issue:

The Pioneer audio system is buzzing, whining, or making extraneous sounds.

Affected Units:

Any Vandoit van with an upgraded Pioneer audio system

Issue Explanation:

The Pioneer audio system can amplify sounds produced by the Ford chassis, specifically an alternator whine.  This sound is often amplified when revving the engine.  The sound can often be eliminated by tuning the system.

Resolution:
Info
Please view this video about troubleshooting buzzing/whining sounds in the Pioneer audio system: https://www.youtube.com/watch?v=Vmghfn1T5mY

The steps below outline the troubleshooting approaches covered in the video:
  1. Check RCA connections at back of head unit and amplifier
    1.       Make sure the cuts on the connections are square
  2. Turn down input sensitive dial on channel 1 and 2
  3. Adjust head unit settings, making everything as flat and level as possible:
    1.       Graphic EQ is flat
    2.       Level the Balance and Fade
    3.       Zero out Speaker dB level
    4.       Turn off all Crossovers
    5.       Turn off Listening Position
    6.       Turn off Time Alignment
    7.       Zero out Bass Boost
    8.       Turn off Loud Boost
  4. Go back to Speaker Level, adjusting the Rear Left and Rear Right dB:
    1.       If the issue is coming from the head unit, turning the dB up will worsen the problem and sound
    2.       If the issue is coming from the amplifier, turning the dB up with fix the issue
  5. Going negative with the dB will allow for the input sensitivity to be turned up.
    1.       Going negative with the dB levels will fix the issue if the issue is coming from the head unit.
    2.       Going negative with the dB levels will worsen the issue if the issue is coming from the amplifier.
If the resolution steps above do not provide the direction you are seeking, please contact the Customer Support team by submitting a ticket through the Customer Support portal or emailing support@vandoit.com.