Yeah, you can't get better integrated than via bluetooth into the existing radio/speakers.
This is a link to where I bought it -
here. This was the cheapest deal I could find in Oz at the time. It arrived a couple of days after I installed it, then it took me approximately less than an hour to plug it in.
I decided on the 3100 instead of the 3200 with the funky colour screen as it takes up less room on the dash and I don't really think that the screen is for looking at anyway while driving. The good thing about the Parrot is that you can pair it to 3 (or maybe 5) different phones and it will work with almost all phones out there, it's firmware upgradeable via bluetooth, so you should be able to leave it installed and not worry if you ever upgrade or change phones.
I've attached a few images so that you can see what it looks like and where I chose to place it. I decided on the location I did as it allowed me to feed the wire for the head unit in between 2 of the blank button plates, which meant that I didn't have to drill any holes or mark anything if I ever wanted to remove it. The mic was pretty easy to install too on the plastic moulding on the door pillar, which just clicked off and on again.
If anyone wants me to do a new thread about this in the modifications area, let me know.
(I used
this thread here to learn how to remove the radio from the dash to get behind it.)