If you must use an FM transmitter, you'll probably do better to overlook the Belkin TuneCast II in favor of other options.
The Belkin TuneCast 3 may be suitable for rural users and long, desolate road trips, but it doesn't quite cut it in a big city.
Belkin TuneCast Auto Live FM transmitter makes use of the iPhone's GPS and interface to find FM frequencies.
FM transmitters -- Griffin's iTrip being the most popular -- are frequently criticised for, well, sucking. We've rounded up four different models for a painful real-world stress test
Unless it's selling in the dollar bin, steer clear of the i.Sound Wireless Waves FM transmitter.
Pricing not available
Belkin Auto Kit for new iPod is too long for some cars
I tried the MediaGate iKit to connect my iPhone to my car's FM radio, preparing to be disappointed. Lo and behold, I got no interference and decent sound quality, even in urban Seattle.
The Belkin TuneStage makes it easy to play back your iPod's music over your home stereo.
The Belkin TuneStage 2 transforms your iPod into a wireless music jukebox that works with any home stereo system.