You should be able to unplug it. I don't suggest cutting wires. I would fix the key buzzer switch in the column before I cut wires.
so is fixing it in the column simple?mine would buzz when I put the lights on so I cut the gray wire to stop it......after draining the battery with no lights on warning when shutting the car down I reattached the gray wire intending to fix the problem but the problem was not there when the wires were reattached and the warning is working properly