Scan the FM dial on your radio and find a frequency with only static. For instance, if 89.7 contains faint music from a faraway radio station, but 89.9 transmits only white noise, choose 89.9 as your frequency.
Plug your iTrip into your iPod by inserting the 1/8-inch plug into your headphone port.
Turn on your iPod and click "Playlists" on your main menu.
Select "iTrip Stations" from the list and scroll down until you locate your chosen frequency on the list. Click the "Select" button on your iPod after you highlight the appropriate frequency number. The red light on the iTrip will begin to flash.
Click the "Pause" button on your iPod while the light flashes. The light will flash three more times and remain lit, indicating a successful tuning.
Click the "Menu" button your iPod to return to the main menu. Select a song or playlist and begin playing while in close proximity to your FM radio.