Cigarette lighter adapting MP3 player.

I was at wal-mart getting my oil changed, and I saw a new product they had, it was a device you plugged into the cigarette lighter, then it turned any USB flash drive into a MP3 player... and you turned your radio to a certain station and it was broadcasted via a FM modulator.

I was wondering if anyone here had also seen this, and possibly had any expierence with them, or hear from someone who has. I have the stock radio, and this seems like a good deal to me, so I can play my music and not have to change out alot of equipment, or run wires all over the place.

they were asking $29.99 for it. the plug itself was about the size of a cellphone charge. had the controls like play, pause, and skip forward/backward on it.

thanks.

might be kinda cool. but then again it's from walmart. I have'nt had much luck getting decent sound out of any of the "FM modulators/mini broadcasters" I have owned in the past other than the ones they use for Sirus and XM radios'. But I also have an amplified system and a person needs quality sound out of any device they use when there are amp's involved. But for a stock system it may be wourth it.