Got REALLY nervous yesterday after I picked up a 42' HDTV at Walmart and noticed that I couldn't unlock/lock my doors out in the parking lot. I had to trip the alarm eventually but was able to start it. I'm using my duplicate key fob the dealer gave me but I will assume the battery will go out soon on that one as well. I was thinking about just taking it to the dealer but wasn't sure if you guys had a better solution. I noticed that there is no screw on the back of the fob so how do you get inside the thing?