Is there a way to block the signal from the keyfob? Kind of defeats the purpose if you have it in some kind of case in your pocket though. The range for the keyless entry in the Z is pretty short... I usually have to be at least 2 feet away for it to work. I believe some systems have it set farther away than others as demonstrated by Jerermy Clarkson on Top Gear with the Challenger. @4:00min