SOX Media Player for Kindle

SOX Media Player lets you play WAV audio files—including music and audiobooks—on your Kindle with Bluetooth audio support. Download the version for your firmware: softfloat (SF) or hardfloat (HF). Version 3 (HF beta) supports WAV files only.
Download SOX Media Player
Features
Requirements
How to Install
  1. Download the correct version for your firmware (see above).
  2. Unzip the downloaded file on your computer.
  3. Follow the included README instructions to place the files in the correct directory locations on your Kindle.
  4. Eject and disconnect your Kindle.
How to Use
  1. Open KUAL on your Kindle.
  2. Select SOX Media Player from the KUAL menu and launch it.
  3. Connect your Bluetooth audio device.
  4. Start playing your WAV files! (HF beta can only play .wav files.)
Notes
Bring Bluetooth audio and WAV playback to your Kindle with SOX Media Player!