Further work using an SmartCar OBD2 USB Device with the MCP_CAN library netted [Daniel] better results, but it would be great to understand precisely why the BeagleBone was causing a disturbance to the bus. Safety is highly important when you’re hacking on a speeding one-ton metal death cart, so it pays to double and triple check everything you’re doing.You can also use Mirrorlink (for the 2 people in the world who actually use it), and perhaps most importantly, replace the crappy built-in voice recognition with Siri or Google Assistant. "Siri, play the road trip playlist" or "Navigate to the nearest gas station" can now be a thing by pressing and holding the voice button on the steering wheel, yup!Click Here https://iexponet.com/smartcar-obd2-device/
https://sites.google.com/view/smartcar-obd2-usb-device/SmartCar-OBD2-USB-Device
https://zenodo.org/record/4400059#.X-wMByPhXIU