I have a 2005 Mercedes c280 and I want to know if it has Bluetooth, some say you have to activate it or something, just to know, it has all the buttons for telephone but this is just this car does not have a cdc player and no aux output wire, I nave the problem of connecting, I have tried searching for it on a device but doesn't work, and this car has radio 20 the Bluetooth and have searched all over the internet and have no answer really. please can you help me , it would be a pleasure, thanks very much.