Problem Connection to my Parrot CK3100 since IOS5

I've had a parrot CK3100 hands free fitted in my car for ages my iphone 3gs always connected to it automatically when I got in the car from the day i had it.

Since the IOS5 update it has to paired everytime i get in the car my other 3gs is still fine without the update is there anything i can do to keep it connected.