Guys,
I have the Parrot CK3000 Evolution (the earlier version) working perfectly with my RNS-510 and the MFSW phone buttons. As said, I have the CAN harness and interface box fitted from quick connects (see photo below). It also works with both generation sterring wheels. I.e with one or two phone buttons, but be pressing a small switch inside the black control box. Beauty of this system, absolutley no cutting or splicing of any cables whatsoever!
Totally plug and play.
Works perfectly and sound quality is excellent. Voice dialling also works really well with my Iphone 3GS, or you can send voice tags over to the parrot unit.
As mentioned, the only thing it doesn't do is send the contacts over to the RNS so you don't have access to the "Telephone" screen on the RNS, but that's it.
If anyone is interested, mine is all being removed from the Golf in a couple of weeks to be sold as my new Rocco has been ordered with the factory bluetooth so mine won't be need any more.