Ok, I drive a 2000 Jeep cherokee. Recently, the key has not been working at times. Sometimes I'll insert the key and the car will start great. But a lot of the time it does not. I put the key it and it will not turn in any directions. I've turned the steering wheel, looked at fuses. I have no idea what's going on. Only 3 years old and I'm having these problems. What the hell could it be? Help!!