2002 Pontiac Trans Am won't start, nothing, no click, doesn't turn over, but all electrical items work.

I will respectfully disagree, the headlights and all electronics work. (Radio interior lights etc) Battery is less than 6 months old, a five year life battery. I had Check System light come on because of a fuel module issue. But now just the 'security' light comes on so I figure it is because I cut the wires to the directional signal and now have to reset the system. I disconnected the positive terminal on the battery for a few seconds, and re attached, the Stereo system did not rebut, all of my stations stayed.

I figured it out! The problem was a fuse, when I cut the wires to the directional signal socket, it must have blown the fuse, even though the car was not on. I watched a lot of videos on how to bypass the Theft device, but I felt the need to check the manual again, there is a large fuse under the hood that is for the Ignition, labeled 'Ing'. It cost 14 plus change. When I removed it and inserted the new one, it started right up. ' Check the fuses first before bypassing the Anti Theft System.