307 Ignition Off Headlights Turn On By Himself.

However, when I parked the car last night, the ignition was off and after a while, the headlights and instrument panel turn on by themselves. When you replace the ignition and turn the ignition off, it straightens and turns off. But after a while they reopen on their own. Last night, I removed the battery terminals so that it would not discharge the battery until the morning. When I started it in the morning and went to work, it started doing it again, turning on the headlights when the ignition was off. As a last resort, I removed the headlight sockets so that I wouldn't have to deal with constantly disconnecting the battery. The instrument panel does not open by itself, it has been fixed, but the headlight socket is disconnected. I wonder why he does it, I would appreciate if anyone who knows can help