My 1995 ford crown Vic making a Continuous beep randomly when driving and even when the car is off?

Not Beeping but a long high Continuous beep randomly when driving and even when the car is off. It's really high-pitched and sometimes it fades in and out but I can't get it to turn off I have a seatbelt on the car doors locked lights off and everything what could it be

How can it be continuous if its random?

Disconnect the battery and see if it stops. If so, reconnect and pull fuses one by one until it stops. At least then you have someplace to look.

Car is old. Cut the wire to the chime.