Nexus Audio/Nav Issues

Hi everyone,

I seem to have a slightly irritating problem with my Nexus unit - every time I switch it on for the first time in any given journey, it automatically goes into 'Telephone' mode. The only way I can cancel this is by pressing the 'Info' key, and then selecting the required mode. Having done this, a CD will play or the radio will come on, but then after about 10 secs, this is interrupted briefly by a message on-screen about adjusting volume 'during the call'.

There is a Nokia full hands-free kit wired up in the car - this was present when I bought it; perhaps this is part of the issue.

ALSO...how does one control the volume of the navigation voice? I have tried reducing the 'Nav Min.' volume right down, but whenever I have the audio volume turned up a bit so that I can hear quieter movements of some classical pieces over the road noise, the voice is unbearably loud!

Many thanks in advance,

SRA