Go into Music Menu, Start a Music Track playing.
Go back into Menu, you will see transmitter.
Scroll down to Frequency, press menu.
You will now see a slider.
Mine is set at 87.5MHz.
You now scroll back to 'Open' and on the main screen you will see the Frequency in the bottom right corner.
If you choose 'Close' in the Transmitter menu it will disappear from the maim screen.
Thus when you chose Open it Transmits and when you chose Close it Dosn't.
Now set your Radio on a spare Preset and Manually tune it to 87.5MHz.
Have your Headphones plugged in as they act as an Arial for better reception.
This works a treat on mine.
Kevin
Kevin Moore, March 2008