Yes it is #### easy. All u had to do is look at .
Griffin's website
Click on support at the top and then click on tuning the itrip. Here is what griffin has to say:
Once you've found an available frequency, you need to find its matching iTrip station file on your iPod. The iTrip Station file is a special, five-second music file that tells the iTrip the frequency on which it will broadcast. You want to "Play" this file, but only this file. Here's how:
1. Navigate to Playlists, and then to iTrip Stations on your iPod.
2. Scroll down this list of station frequencies until you find the matching frequency.
3. With this station highlighted, press the iPod's Play button or the button in the center of the scroll wheel.
4. When the light on the iTrip starts flashing rapidly, press the Pause button, to stop playback. (The Pause button, which is also the Play button, and has a right-facing arrow and two vertical bars.) This step is very important because the iPod will continue on to the next station file if the Pause button isn't pressed, and your iTrip won't know which station to use to broadcast.
5. After you've pressed the Pause button the iTrip's light will flash slowly three times, and then remain on. This tells you the iTrip has been tuned to the new frequency and is ready for use.
You’re now ready to listen to your iPod on any FM radio., so select your music and rock on! But make sure the volume on your iPod is set between 50 and 70% of maximum; any lower, and iTrip won’t be able to hear your music; any higher and you may hear distortion.
That’s it! iTrip will remember your new station until you decide to change it. You can change stations as often as you like. Please note that you may have to play around with several different frequencies before you find the one that gives you the best sound quality