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Cantaloupe Radio

BA31 Bluetooth Kit for CM5908

BA31 Bluetooth Kit for CM5908

PLEASE NOTE: OEM HiFi installation is REQUIRED to purchase this product
If you prefer to DIY, please purchase directly at

The Cantaloupe Radio BA31 Bluetooth retrofit kit breathes new life into your factory BMW CM5908 radio with modern features like Bluetooth streaming, hands-free calling, auxiliary input, and voice assistance. The plug-n-play circuit board replaces the factory cassette mechanism inside the radio, enabling a deep integration of audio functionality in a league of its own.

For a complete description of the functionality of this kit, have a look at the Owner's Manual.

Want an even better experience? Check out the optional CM5908 Display+ Enhanced LCD kit for a beautifully redesigned LCD display that will make your radio feel like it truly shipped with all these modern features from the factory.


  • High-fidelity Bluetooth music streaming wired directly into the radio - no tape adapters or FM transmitters here
  • Seamless connection experience
  • Hands-free calling with included microphone
  • Control music playback, answer and end calls, invoke your phone's voice assistant, and cycle through sources using the original radio buttons
  • 1/8" auxiliary input jack for satellite radio, legacy devices, etc.
  • LCD indicators for Bluetooth connection and playback state
  • Maintains all tuner (AM/FM/WB) functionality. Cycle through Bluetooth, AUX, and tuner sources by pressing the volume knob
  • 100% stock appearance
  • 100% reversible - no permanent or destructive changes required
  • Plug-n-play board requires only basic hand tools and an hour or two to install
  • Customize behaviors, update firmware, and more with Cantaloupe Radio's Dashboard Desktop Application for Mac and Windows
Regular price $449.00 USD
Regular price Sale price $449.00 USD
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