FWIW Will, when we traded our 2006 in for the current 2008 same model everything except auto as opposed to manual, I removed my Parrot lead which I had got (on your kind advice) from Justcarkits, and which was listed for up to 2007 models. It works just fine in our 2008, including of course the muting of the radio etc. Brilliant bit of kit, highly recommendable.
Pete