Car Bluetooth Volume issue post iOS 6 upgrade

Hi,

I am having a wierd issue with the volumne of my car bluetooth post iOS 6 update on my iPhone 4S.

Here is the situation -

I connect the two devices using bluetooth.

The volumne on my car bluetooth is quite low even when the iPhone volume is at MAX. However the moment i reduce the iphone volume by a couple of bars and the then go to Max volumne the car bluetooth suddenly starts reacting the way it used to (with high sound).

I am facing this probem only after iOS 6 update.

Any body has any suggesstions / solutions ?

Thanks,

Srini R