No.
1. The first one won't work, because the device works by Remote- not by sound. Otherwise a thief could just simulate the beeping noise- or for that matter, use their own unlocker tool to unlock any car.
2. That just doesn't make any sense. May as well, have it say, "insert the first prime number after the square root of your pin number". completely arbitrary. additionally you have only one PIN number- if you put it in backwards, that means you have two (the backwards one as well as your standard forward one). And lastly- the bank would outline this as a security feature if it existed. Why implement a feature and never tell anybody? Definitely a wasted effort.