Can you attach a FM transmitter to your laptop and play MP3 on your (car) stereo?

Can I attach FM transmitter (typically used on MP3 players) to my laptop so I can play MP3s on my car stereo? This would be much cheaper (and require less synching up) than getting a portable mp3 player.

Please advise. Thanks!

I agree with the previous poster, theoretically, yes.

However, in my experience, FM transmitters don't work very well in crowded metropolitan areas such as the San Francisco Bay Area. You drive a very short way and then need to retune because you get interference from another station.

If your car has a cassette player in it, use a cassette adapter instead.

And, I also agree, laptops are unwieldy, have short battery lives, and are targets for theft. Slam on the brakes and your laptop can go flying.

A portable music device and a cassette adapter would be a better option. It's what I use. But don't leave the portable music player out … my wife already had her's stolen.