Late, but I think we fixed the alternator issue. A friend and I spent a couple hours going through the wiring, and checking fuses etc. Turns out a fusible link at the starter had blown and was dangling loose, and would touch the exhaust, shorting the alternator. We replaced that, tied it up so it was nowhere close to the exhaust then took it for a test ride. It drove fine without having the charge light or security system kick in, so think we solved that issue.
The only other problem is that we drove into to town today, and I kept hearing a clicking noise ( Wife was driving) and I looked around to see what was up.and the door locks were randomly locking / unlocking for no reason at all that I could figure out.
The fix for that I decided was to tell my wife to keep the keys in her pocket. (we normally just drop them on the floor, or the door pocket)
Edit: I drove it into town yesterday to get dog food and a few other things. Problem is that every time I opened a door, the horn would start going off, and the only way to stop it was to slip the key in and start the car. Very Annoying!
I have started to hate Chevy/ GMC products. I told my wife if she ever brings another one home, she'd have to park it in the church lot on the corner (1 1/2 mile away) because I want nothing at all to do with it.
