How do you disable the factory alarm system on a 2002 Honda Accord with no remote?

To disable the factory alarm system on a 2002 Honda Accord without a remote, you can use the key to unlock the driver's door, which typically disarms the alarm. If this doesn't work, try starting the car with the key; this may also reset the alarm. If the alarm still activates, disconnecting the negative battery terminal for a few minutes can reset the system. If problems persist, consult the owner's manual or a professional for further assistance.