To connect a Garmin dash cam to your phone, you will need the USB power adaptor that comes with the unit. First, you will need to plug your Garmin dash cam into the vehicle and have your smartphone within 10 feet. Secondly, you need to make sure you have downloaded the Garmin Drive app, not to be confused with Garmin Connect. You can then select "Garmin Dash Cam Series" on the Drive menu. You will then need to select the Drive App feature on your device as well as this will pair the two devices. Press the button four times and then press connect. You are all set.