'08 335i

Mid West
I was thinking about placing this post in the E-90 section, but I think that my question will cover most models. I have noticed that I must have the ignition on in order for the Universal door opener <Home Link Garage Door Openers> to function. This is fine and dandy when coming home, and the car is running, but makes is a PIA when leaving. My routine normally consists of me getting situated in the car, opening the garage door, starting the vehicle, backing out, closing the door ect. Now I find that I must turn the ignition on prior to opening the door, waiting for the door to open, then press the button again to start the car. Is this normal? The car has comfort access that I use, but it makes no difference if I use the key. The car has the Premium, Sport, and Cold Weather packages, with the auto transmission.