"Well of course there's a spine device! I need all the lumbar support I can get! At my age, you know, there are ... what? ... Oh ... never mind."
these were attempted in ford pickups a few years back, but the memory was limited and only was able to record the last minute or two of conversation before the crash.
in 90% of cases of a crash, the last thing heard was “oh *$&^”
except in alabama, where the final words were “hold muh beer and watch this!!”
Most of the basic functions of the “Event Data Recorder” are built right into the engine/powertrain control modules of 1996 and newer cars. Check the operator’s manual... there’s probably a disclaimer in there regarding law enforcement and insurers gaining access to that data.