Well, I bit the bullet and installed a Parrot CK-3000 Evolution in my wife's Solstice. It worked okay, even with the Monsoon system. Jerry Valley hooked me up with a Parrot wire harness that did the trick. The audio is a little loud because of the amp in the Monsoon system, but it works well while on the road. Placing the mis in the instrument panel worked well and allowed for a clear conversation, even with the roof down.
Take a look: LINKY