> They went out with AM-only radios, circa 1969.
No No, they were still standard in 1980. IMHO, GM et al figured that by
abandoning the standards they could eliminate thrid-party car stereo sales
and make more money by selling a $100 OEM stereo for $300 under the
assumption that Sony and Pioneer and so forth would just abandon the market.
For some reason public reaction never seems to do what the Big Three think
they should. Just as well, I guess. At any rate, processor-controlled
stereos allow the designer to do anything they want to screw up the user
interface, so they do. </rant>