does media engine have the capability of muting the line in while the voice navigation talks to me ??
Media engine doesn't communicate with GPS software. What navigation software are you using? If you use MapMonkey with Destinator, it has an option to mute any line you want on voice prompts and it embeds in Mediaengine nicely.
i was going to go with mapoint 2k6 but if mapmonkey works well I might just go that route