What does the buzzer sound like? I suspect it is the same device that sounds for other warning functions like headlights left on or low fuel, etc. I am strongly considering an '06 X OR/MT, but I think this might be very annoying for me. Frequently beeping and flashing alarms make other more important alarms less noticeable. The truck that cried wolf. Does the Frontier have the same system? I'm back and forth between the X, Frontier, and Tacoma.