Have a 2015 CX-5 that I just had the dealer install the Homelink/Auto dim mirror in. Question I have is, is the Homelink supposed to have continual power to it? I figured you would have to have the starter fob near by for the Homelink to work but mine is constantly on. My wife is worried if we park the car in the driveway instead of the garage that someone can open the garage door. Thanks.