After removing the cameras and GPS equipment, I was left with a bus that would not start and had a ton of alarms that would not go off. We bypassed the " ignition switch" with a push button switch. Now the bus starts with no problem, but we still have the alarms. All exits have been checked and are secured. Air pressure alarm turns off when pressure is built up. When I turn the ignition key "backwards ", toward the driver, the alarms still scream. Anybody have any ideas on how to remove or silence these things?