A:AnswerYes, you can use the built in SmartSwitch app. Works well, and lets you decide what to transfer. Takes a little time if you have a lot on your other phone, tablet, and if installing all the apps.
A:AnswerYes, you can. You can use the headphone jack for a wired solution or Bluetooth. If your stereo does not support Bluetooth, then I recommend also getting the Avantee Saturn which can be configured as a Bluetooth Transmitter or Receiver.