Ye I know ECUs are more than the engine's ECU. I am fine with the car stereo running Linux and getting access to read only CAN data, or at-least with some hardw

Ye I know ECUs are more than the engine's ECU. I am fine with the car stereo running Linux and getting access to read only CAN data, or at-least with some hardware upstream CAN-filter for what it can send on CAN. Given the auto-update fad that breaks my stuff all the time on my office Win 10 computer (both from MS and the company IT department). I'm not very keen on having over the air updates for ECUs or the Infotainment system. At-least not automatic.