Working with Apple UK firm has Hebe Styling has developed a legal FM-based in-car audio solution for iPod users, iDrive.
iDrive is described as "the Apple-approved solution for the iPod and iPod mini". It's a cradle-based system that takes the music from the iPod using the Dock connector, rather than earphones, charging the music player up in the process.
Unlike existing FM-based products iDrive does not break radiocommunications regulations. It uses an FM modulator fitted directly into the car stereo head unit.
Because it's a direct connection, the manufacturers promise no loss of sound quality, and no stray transmissions - and its' the latter point that makes the product legal under UK radio regulations.
To use iDrive drivers just need to choose one of the buttons normally used to select radio channels on their stereo, and during installation the iDrive is set-up for that specific channel.
The product costs £95 as a self-install kit, or £195 including installation.