TheBoy wrote on 25. Jan 2010 at 13:01:
Be aware, some kits expect the echo cancellation to be in handset (Nokia CK-7W being one), some kits have it built in to kit (eg, most Parrots).
Personally, I wouldn't go down the tomtom route, as too much junk to set up for every journey.
But surely you want a kit to work with your existing mobile? Therefore your existing mobile will point you in the direction of which kit is best

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That would explain why the people ringing my Samsung Tocca used to hear themselves talking through my CK-7W. Got to the point that I stuck an old 6310 in the car just for car use. Got a Nokia N97 mini now and thats perfect.
I also have a Tomtom 520. Imho, waste of time on the bluetooth side of things. Doesn't matter that my phone trusts it and should connect automatically, it rarely does.