Griffin iTrip nano FM Transmitter - 50ft $13.99

iTrip wirelessly sends the iPod nano's audio to any FM receiver, to free you from the tyranny of headphones. iTrip for iPod nano interfaces with the user in a completely original way. It uses the nano's own clear, bright screen to display tuning and setup information. This efficient approach makes iTrip for nano the slimmest, lightest, and best-looking iPod accessory, ever.

Buy.com is carrying this iTrip nano FM Transmitter for $13.99