...or whatever it's called. Any reason not to remove that button under the collum that you have to push to turn the key to lock and remove it? It's just a peice of metal and spring that blocks the tumbler when not pressed. I am thinking about doing away with the nuesance.
An alternative would have been to position an o-ring on the plastic button's shaft. It holds the button up (I did mine a couple years ago like that - I can go back to oem if desired).