Hello, I have a 2006 Monte LTZ and I've been having an issue recently with the anti theft system. I'll try to start my car and nothing happens, I get "service theft detterent system" the whole time and the key also won't turn back to the off position. I can hear a click in the fuse box but that's about it. My car has a new battery and I just had the ignition replaced last year, resetting the battery didn't help so I'm thinking it may be something electrical or in the fuse box. I was just wondering if anyone has had this issue before or if anyone has any suggestions, thank you.