An IBus-enabled, fully integrated Bluetooth module for your car.

Coming May/June 2019

Play music, take calls and experience OE-like integration

Support for the OE BMW mic is available through an add-on board, or use any standard mic


  • Full integration with the vehicle for an OE-like experience
  • Full Support for the Business CD and Navigation Systems
  • Support for the OE BMW Microphone (requires an add-on board and some work in the trunk, depending on vehicle)
  • Metadata display on all UIs
  • Firmware Upgradable
  • Compatible with the analog and digital (coax) DSP system
  • Simple installation
  • Fully open source, down to the hardware
  • Extremely high quality audio output

Known Compatibility

The BlueBus unit is compatible with the following IBus-Enabled vehicles with the exception of the JDM versions of any of these vehicles

  • BMW 3-series E46 (1998-2006)
  • BMW 5-series E39 (1995-2004)
  • BMW 7-series E38 (1994-2001)
  • BMW X3 E83 (2004-2010)
  • BMW X5 E53 (1999-2006)
  • BMW Z4 E85 E86 (2002-2008)
  • BMW New Mini One and Cooper R50 (2001-2006) R52 (2005-2008) and the R53 (2001-2006)
  • BMW Range Rover L30/L322 (1999-2003)
  • BMW Rover 75 R40 (1999-2005)


This product has been fully developed by myself. Before you register your intent to pre-order this module, you should understand that this is not my full-time job and I have no employees (other than my wife and child). If demand for this product reaches levels where I cannot fulfill orders on time, I will hire help. You should also understand that while I am more than happy to fix any bugs with the firmware, they may not be resolved overnight.

If you're okay with all of this, please sign up below to reserve your spot on the pre-order list. Once the current prototypes have been validated, I will email you to make payment. After payment has been received, the modules will be sent to manufacture. If you do not pay within 7 days, you will forfeit your spot on the pre-order list.

I would also like to note that I have not yet finished designing the case for the BlueBus. If you wish to wait until a case is available, please select that option below. Otherwise, your unit will come wrapped in a non-conductive rubber sleeve and I will mail you the case once they come in.

Lastly, pricing is still not set in stone. I'm currently looking at around $170, but I'm still waiting on quotes for manufacture as well as licensing of the cVc codec. The end price will be under $200, regardless.

Tech Specs

  • 1MB ROM for firmware (over 90% free so far)
  • 32kB RAM
  • BC127 Bluetooth module
  • Support for A2DP, HFP, SPP, BLE and MAP Bluetooth protocols
  • 2.1v RMS Audio DAC with 113dB SNR
  • FT232RL USB to Serial Converter
  • Field upgradable firmware for MCU and BC127
  • Melexis TH3122.4 IBus transceiver with hardware collision detection/prevention
  • 1.5 Amp Fuse to prevent over-current conditions
  • 512kB EEPROM
  • Built-in analog mute circuit to remove audible noise while not playing media
  • OE Connectors sourced from the same comany that BMW purchased them from (TE Connectivity)
  • cVc (Clear Voice Capture) Codec enabled to prevent noise and echo when taking phone calls

Warranty & Returns

If you're not satisfied with the module, you have 14 days from the day your BlueBus is delivered to ask for an RMA in order to receive a full refund. The module carries a life-time warranty against any defects. Any modifications or misuse of the module by the end user will nullify this warranty.