It´s rare to get hands on a gadget that truly is plug ´n play. But the Kensington RDS FM transmitter/car charger for Ipod is. I received it, plugged it into the power outlet in the car and it was immediatly broadcasting on a free frequency (88,1 MHZ) with RDS feed of songtitles on the display. The output is a little low, but that´s the only bad thing there is to say about the Kensington device. Before I have used an old Griffin transmitter, but it just wasn´t transmitting strong enough to really give a good and clean signal in the car – and then it wasn´t recharging the Ipod while it played. The Kensington solves these issues. Thumbs up.