Every so often when I get in my car to start it, I hear a beep or a buzz sound three times and it stops, its more of a beep 3 times, has anyone else had this? I kind of remember some one saying something about there car beeping when it was low on fuel, that would make sence because I was low on fuel? It sounds like it is coming from around the rear of the radio. Doesn't do it long enough to find it.