unlock car- alarm goes off

At first when I unlocked my car on the drivers side the alarm would go off, so I used the passengers side and it was fine. Now both sides set the alarm off when I unlock them. I have a 93' LS. I did a search on this and found somebody with similar problem but the thread kind of died off and didn't help me. I want to disable the alarm all together but I read in that post that it's tied into the cpu and you can't. Any ideas? Thanks- Andrew.