Yeah, i've heard of that one before. That and bump keying are some of the retardedly easy ways to break into things. There are many other simple "tools of the trade"... you gotta wonder how people figure this stuff out.
Sadly that would work on the passenger door of many Nissan's, some Toyota's and MKIII VWs, if the method is what I am thinking, the drivers door would not work for that which I don't think they mention.
I think we've established that "Ka Ka" and "Tukki Tukki" don't work.
i could see how the air pressure could hit the tumblers in the lock but you would still have to turn the tumblers inside to the unlock position.
i could be wrong but i dont see how that is feesable with a tennis ball.
There is a little trigger that trips the power unlock when the lock cylinder rotates in central locking systems. This trigger can be moved by the incoming air pressure.
The reason it won't work in the drivers door is most of them require a double pulse, while the passenger only requires one to open all doors.
I think we've established that "Ka Ka" and "Tukki Tukki" don't work.