FWIW I have had nothing but hassle with Parrot kit, it's the most useless piece of cr*p on the market. I had 3 separate kits all with problems and returned them all. I then read a thread on here about Bury CC9060 fitted that and never looked back superb peice of kit. As for Halfrauds fitting it beware they have a shocking reputation for bodging and breaking trim.
That's not filled me with condfidence. Shame as it really seems to fit the bill. I just don't like the idea of it not using the main stereo if it doesn't have an Aux in.