iTrip usage

I just bought an iTrip by Griffin off ebay for under 7 bucks including shipping. This unit, which plugs directly into the charging/syncing plug of an ipod has a lot of bang for the buck. It works by using a weak/unused FM radio frequency to transmit the music of the ipod through a standard car stereo. I used it to listen to music on a trip from San Diego, CA to Big Bear, CA. I had only minimal static in a few areas, the rest of the time it sounded like the ipod was hard wired into the stereo. The unit automatically chooses a station and then displays it on a small LCD screen. You then tune your stereo to that station, its as simple as that. I highly recommend this unit to anyone with an ipod.