I disconnected the door/key chime but didn't disable the headlight warning chime.It didn't seem clear from the other responses, so I thought I would chime in (haha). My '99 has both a headlight warning chime when the lights are left on and the key is not in the ignition and there is also a warning chime when you leave the key in the ignition and the door is open, HTH.
Clem