Glad you're up and running!Ted and anyone interested. I received my BlueBus last week and installed in my 03 M5. I previously had an Audiovox Mediabridge, then a CHGeek FM-based bluetooth interface. I plugged in the unit and was up and running very quickly. A true 15 minute installation. Pairing was quick and seamless. I'm using the analog interface for sound as I don't have an DSP Coax Digital audio cable. Sound quality, using Spotify, is better than either of my prior solutions and is tuneable via settings in the interface for gain. Integration was 100% in terms of voice control and display. Perhaps a small bug when changing the display from the dashboard view to navigation using the button on the headunit (it switches back to the dashboard view in most situations). I can now keep my factory electronics! The bad news... had a weak battery and was playing around with the car shut off and it killed the battery. Replaced the battery with a new interstate. Also, will now have to replace my Nav unit screen that has dead pixels.
FYI, I had a Samsung Galaxy S9 for the first few days of usage and moved to an iPhone XR. Both worked well and had google assistant and siri control working great. I can recommend this solution to those that are looking to modernize without replacing headunits/wiring/amplifiers/crossovers/etc.
My 03 M5 was wired for phone, but didn't have any phone electronics. I purchased a factory Microphone and connected to the wiring by the sunroof. The aforementioned audio connectors were used from the CD-Changer that hasn't been used in some time anyway. I also purchased the "Blue TCU" cable to interface to the car properly. I'm going to try and source a DSP Coax cable and see if this improves the already great sound quality.
Let me address some of your concerns:
This was recently resolved in the following firmware: https://t3ddftw.s3.us-east-2.amazonaws.com/BlueBus/firmware/bluebus_1_1_11_4.hexPerhaps a small bug when changing the display from the dashboard view to navigation using the button on the headunit (it switches back to the dashboard view in most situations). I can now keep my factory electronics!
Basically, the Navi doesn't notify the radio that the screen state is set to the Navi when using the "radio overlay" button. I now track the button press to get around this.
You will be blown away by DSP digital audio quality. You can get a cable here (do note that I already set DigiKey to "Canada" mode, so price is in CAD): 415-0008-036 Cinch Connectivity Solutions Johnson | Cable Assemblies | DigiKeyI'm going to try and source a DSP Coax cable and see if this improves the already great sound quality.
Thanks!
-Ted