Dave,
I can't really comment on detail that may be commercially sensitive so will leave it as "maybe the companies that made the radios in your scrapped cars should have branched out into more complex electronic systems". All I can say is older plant with simpler electronics in my world is far more reliable than new plant with more complex solutions! I went through recently a series of failures on equipment produced by a European major entity that as the manufacturer they were unable to diagnose or explain. The fault only disapearing when every "box" in the system was replaced.
My take on the mess we are in now is companies who make "stuff" need to sell more "stuff" to make it profitable. To sell more "stuff" their "stuff" needs a short and finite life either through obsolescence or failure in order to keep the market for "stuff" vibrant. The word sustainable is often used in relation to economy and environment but the two resultant phrases are moving further apart.
Paul.