Just bought one of these after using a friends. It looks like a great price, rrp of £36.99 but seems to be between £20-£30 in most places.
Now you can play your tunes in your car through any MP3 player, computer, or laptop to listen to your favorite tunes through any FM stereo receiver. The Belkin TuneCast 3 connects portable music players to your car or home stereo quickly and easily over FM radio waves.
* Delivers best-in-class audio
* Works with iPod devices, PDAs, MP3 players, CD and cassette players, or computers (using a headphone plug)
* Features easy-to-read, OLED screen
* Programs the clearest frequency with preset buttons
* Operates on FM channels from 88.1MHz-107.9MHz
* Draws power from batteries or car power adapter, not your MP3 player
* Lets you use as much of the 50 cm cable as you like, with integrated cable management
* Plays your music in stereo or mono audio
* Positions easily in car with included clip