My new S class has arrived but the choice of mobiles to fit the cradles is rubbish. They have a new thing called "SAP" which is the software on the mobile itself which works through bluetooth(once bluetooth cradle is fitted) but Merc only recommend 4 mobiles which have this software. I have looked and loads of mobiles have this software. Can I use any mobile with bluetooth and this SAP software to work in my car once the bluetooth cradle is fitted