I'm a newbie here looking to buy the latest S class (used). I want a car with Harman Kardon surround sound, however with the old W220 you simply looked at the speaker grille for the Bose logo to indicate it had superior sound. How do you tell with the latest model that it has the upgraded Harman Kardon option? Ideally physical checks are better as then I can call dealers and ask them to check for me so that it could save me a wasted trip
Thanks in advance!
Thanks in advance!