This is amazing.

[Update a while later]

Note that this seemed to be an accident of inadvertent file naming, but FM subcarriers carry all sorts of info (like real-time traffic, weather, or alerts). Imagine the kinds of malicious things one could do with this, because the automakers haven’t bullet proofed their code. Particularly with self-driving cars and kill switches. There should be a firewall between a car’s radio and the rest of the avionics (as I think they do for aircraft entertainment systems).