FM Transmitter for Apple iPhone 4 Car Charger HANDS-FREE
Got this for my new iphone4.   It sounds great and is very easy to use. . . the only problem (and it's a major one) is that it does not stay still in the car power port or cigarette lighter port.   When you go around a corner, it tips to the side, most times becoming unplugged.   There was a rubber grommet on the plug that did help some, but it does not prevent movement totally - take a corner and it's going down.   Very dissapointed since the sound quality is so great.   If you push the thing into a corner