Revo PLL FM-RE02

As with many of the adaptors tested, the Revo relies on an FM signal to transfer music. It plugs in between your radio and aerial, and then you tune into one of two pre-selected frequencies. This may sound complicated, but the clear instructions mean an amateur can fit it. The MP3 player is linked to the device by the headphone jack, so the Revo can handle any audio device. Reception on both iPod and Sony was very good, although the adaptor didn’t power either and the box would need to be mounted securely.