GSI Super Quality Mini FM Transmitter/Modulator + Car Charger Cigarette Lighter Port Kit + Full Function Remote Control - LCD Display, For Apple iPhone 3G/3GS/4G, iPod Nano, Touch, Video, Classic
I've had this fm transmitter for a few years now and it still works perfectly.<br /><br />The key is to select a radio station far away from other local stations and you'll get a good connection.  Usually low 90s or high 80s work well.<br /><br />The remote that comes with it is hit or miss but most of the time it functions fine when you have it close to the receiver.  I'd recommend picking this up for those cars without an auxiliary jack.