Actually I thought twice about getting the Parrot kit but i am very very glad that i did. I think it is the best Twizy accessory by far and has made each journey enjoyable and relaxing. The kit is a 9100 Parott model which does not appear to be the top of the line but it is a special kit for Renault which comes with the speakers that are missing from the speaker housing.
I have used wireless bluetooth from iPAD which works well and keep a small old iPOD plugged in permenantly so I get music when I drive. It pairs to my Samsung Galaxy II well and I ordered from ebay a 4.99 suction cup set and power adapter that is great and now use this for Navigation.
It has voice control and when you get an incoming call it asks if you want to "accept" and you can say the word and it will connect the carll. iam very pleased and I would also say that this will retain some of its value on resale as if two cars are compared the one with the kit will be worth more.
On the downside, I really miss the radio and I would love to see a mobile DAB solution that works well over bluetooth so i could listen without 3G Data which is a problem as audio streaming takes up a lot of data.
Its not conencted with the Parrot bluetooth but this car needs Cupholders! I stopped at MacDonalds on the way to work today and the car is too low for the order bit so i had to go upto the third window to order coffee and where can i put a hot coffee while I drive? Answer nowhere, so Renault or someone please design a cupholder that is damped! and fit it on the left hand side under the dash board somewhere!