Car Alarms: trouble disarming alarm, starter wire, crimp connectors

Question
i purchased a 1995 riviera in august, not knowing it had an alarm system. i go get the tags and it goes off a guy helps by cutting the speaker and removing the fuse. well the battery died and now it has armed itself some how again. please help me turn it off.

Answer
Most aftermarket alarms have a way to manually over ride them, this is normally achieved by turning the key in the ignition switch to the run position and flipping/pressing a small switch normally mounted in the driver's interior of the vehicle.  This sounds more like you want to remove the system all together so here is a generic alarm removal how-to:

Typically an alarm system would be installed on the driver's side interior of the vehicle.  This system would have been tapped into the ignition switch wiring running down from the key.  If you remove the dash panel(s) under the steering column you should be able to locate where the harness was added that goes to the alarm.  Disconnect each wire that was tapped in and insulate the factory wiring.  You will also see that at least one of the wires was cut, this is the vehicle starter wire that runs from the key to the starter.  This wire needs to be restored, I always recommend soldering all connections but crimp connectors should also work.  Make sure that you remove all connections to the alarm and that any wires that may be exposed are insulated and mounted in a way that they will not interfere with any moving parts and do not run the risk of shorting out.  Remember to take your time and follow each connection running from the brain of the system, leaving one wire connected that you are unsure of the function could cause problems in the future so be sure to remove every wire.