spliting

HI I HAVE SEARCHED LOADS FOR THIS BUT JUST CAN GET IT SO HOW DO YOU SPLIT THE GEAR KNOB FROM THE LEATHER GAITOR PLEASE HELP:cry:

Hi, my audi tt comp alloys are being refurbed in grey so I was looking to split the cover off the rear lights and spray the inards the same colour. I have done this many times in the past on fiestas I have owned but when I tried on the beeza no mater how much heat I put into them with the heat...