I am trying to avoid having to pay 600 bucks for a new ignition cylinder by doing it myself. The key perfectly fits into the ignition, but does not turn to start the vehicle. So, i'm trying to take out the cylinder to bring it to my friend who is a locksmith, who can match up the pins in the cylinder to the key, but I need help taking it out. So, please if you can give me a detailed response, it would be helpful. ASAP please!