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Replacement Down Cable for Bose A20 Aviation Headset

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Replacement down cable for Bose A20 aviation headset. This cable runs between the headset boom microphone and the control module. 

Bose made two versions of this cable for the A20 headset. Select the correct version for your headset based on manufacture date:

  • Bose A20 manufactured from 2010 to 2014: V1 A20 2010-2014
  • Bose A20 manufactured from 2015 to 2024: V2 A20 2015-2024

Review the control module images above and select the correct A20 down cable for your specific headset model. Repair your headset at your convenience and reduce downtime and repair costs. Made for Bose A20 Bluetooth and non-Bluetooth models. 


  • Preinstalled connectors for quick and easy installation
  • Shielded for greater EMI resistance
  • Cable only. Control module not included
  • Easy installation instructions on our blog