I have a Go720 which I'm trying to use with a set of headphones. If I select Line Out Audio on Speaker Preferences it still plays music and instructions via the built-in speaker.
I've tried other permutations and found that I can get it to play music if I select Radio Transmission on the Music speaker menu. However, there is nothing I can do to get the audio instructions to the headphone.
Any clues, please? Is this a software fault or a hardware issue. The unit is 8 months old and has not been used much.