My A5 is ordered with the Technology Package which includes the 'keyless' entry/operation of the vehicle, so I have the Start/Stop button on the console. On cars with this option is there still the option of using the key if you want? and does the key function the same as the models without the Advanced key option? In other words can I use the key to start the car as well as the Start/Stop button? Can't seem to find this info anywhere.