Transmitting audio to car's FM tuner

[breakingnews]

Originally Posted by glatt

What possible reason could car manufacturers have for not putting a line-in jack on the faceplate of all factory radios? Similar jacks have been pretty standard on TV faceplates for years now. If consumers will choose a car based on cupholders, they will also choose one based on a line-in jack. There are so many things you could plug into one, from iPods to portable dvd players for the kids.

Yeah, I was wondering about that myself. Seems it would make sense - especially since some radios already have a headphone jack. Easy enough to put an input plug, wouldn't ya think?