Bluetooth Issue - Help




I have a 2010 CLS and it has bluetooth but not bluetooth audio. I have looked on line and most people say its possible to get bluetooth audo by updating the car computer from Mercedes benz dealership.
I have gone to MB and they say there is no update for my car so there is nothing they can do.
My bluetooth also keeps cutting out for a few seconds when I first connect to a call. With this the other person can hear me by I cant hear them for a few seconds and then its all back to normal.
I dont know what model of command i have in my car. Its the one with the Send button on the left side of the unit -- not at the bottom ---
Please help!
Is there a work around???? Is there any other way to get Bluetooth audio in this car?
I have the meadia centre in the car where you can plug an ipod directely into the car.
thanks for the help in advance.


