Hi everyone. I'm new to the forum but glad I found it. I have an 88 suburban 5.7 and I am having major problems with the factory security system. I had it disabled (or so I thought) and haven't had any problems out of it in 3 months. I switched stereo's today and now the suburban wont start. It's acting like the security system is engaged. When I turn the key all I hear is the box for the security system click. The starter doesn't try to engage or anything. Does anyone know how to completely do away with the factory security system so my truck will start again?