The Bluetooth button you speak of is the exhaust flap control for the JCW Pro Exhaust. Unfortunately the stock JCW does not come with the JCW Pro Exhaust (i think it should've been standard for all JCWs).I just got my 2016 JCW last week here in the US. Am I supposed to receive one of those bluetooth throttle button to "let 'er rip"? Or, is this built-in already?