A:AnswerUnfortunately no, the only headphone jack in the car is your auxiliary port, to plug in, say, a phone with a headphone jack to play whatever you wanted from your phone. They have adapters for phones that don't have them. I'm not sure if there's a way to reverse engineer it but as far as I'm concerned there's no way.
A:AnswerYes, this was the sole reason I purchased them. I had searched on amazon and e-bay and did not find another one as reasonably priced and by a reputable maker as Sony
A:AnswerDon't see why not. It has a standard mini audio jack. They are the same as my ancient pair from a decade ago, so they will probably work with a number of devices. I use with handy cam, mp3 player and laptop.