I have been using a Parrot CK3300 Bluetooth Handsfree kit with GPS

My beef is that I often use the GPS (with TomTom Navigator 5) and I can't use the GPS and Handsfree at the same time.

I was thinking I might go back to a "wired" setup and the "mr Handsfree Wired Genius" looks pretty good

Does anybody have one? --- or know of a review

Thanks in advance