I have an Audi A4 Quattro 1997 that I had sitting in my driveway for a month. I did not put it on the road and I would like to put it but the problem is that the alarm must have been going off when I wasnt home and it seems that the battery is dead. I do have an audiovox alarm with remote start. I don't know a lot about the car and I cannot unlock the doors at all with the key. I don't know what to do.