Having reception issues with your iPod or MP3 player FM Transmitters? Well here's a handy tip for ya!
Before you head out in your car... check out Radio-Locator. It's a website dedicated to listing all the radio stations both in the US and around the world.
Select your location by typing in your zip code or station call letters if you're in the US, or pick the drop down menu if you're overseas. Then click the “go” button.
In a few seconds you'll be presented with a list of radio stations in your area and more importantly the frequencies they're on. Find out which FM frequencies aren't being broadcasted on and use those for your FM Transmitter.