I too have the 2001 LS430 with Mark Levinson Nav, and have just purchased a Sprint Treo650 primarliy for the bluetooth capabilities. Had I known then what I have come to now know about the complexities of bluetooth and its lack of universal applications....
Anyway, grassypond, I'm curious if you have found the solution to your questions?
I have been looking into installing the Parrot CK3000, but need to know if there is a way to use the Mute. My installer says he can poke around, but ... specific directions would be great.
Thanks...