have 85 max and the security system seems to be having problems. Horn and light will activate about 10-20 mins after parking for no reason. Tried the key in the door/trunk with no luck. have to disconnect battery. Moved some of the relays around but problem is still there. The horn started while driving down the street. Car has been parked inactive for about 6 months, batery was dead. Can a low battery conditon cause this to happen?

Anyone know how to diagnose or better yet disconnect the security system. Car is too old for anyone to want anymore!