old chapman alarm

hello all, i have an 85 olds cutlass ciera. it has one of those old key type alarm systems. it says chapman, nothing else just chapman. you need a key to disarm/arm it. i have the key however the alarm still seems to be affecting the car power distribution. it was running fine except for the fact that it needed a new battery. i replaced the battery, and now there is no power going through the car it self. someone told me that these alarm systems had a lock out feature. is there a safe way of just clipping the wiring to the alarm itself and just forget about it. please help. thanks.

Track the wires down ,usually spliced into the wires off the ign switch and reconnect every back to stock.