Parking brake light on 74 super

[Bruce J]

My brake dash light stays on all the time. The wire from the handle switch isn’t connected to anything. The po removed the seatbelt relay. There are no wires under the seat nor seat belt wires. How can I wire the switch to make the light go out? Reading through the posts I see this must be a common problem. The 74 was the only year with that annoying seat belt relay that would keep the car from starting so people ripped them out. I just got this car and am restoring it. Any help is greatly appreciated.
3/25/24: Upon further research I think I’m seeing the brake dash light is on the same circuit with the master cylinder switches and the oil light, and any of the three can make the dash light turn on. I will next check the two m/c switches, but I know the brakes work and so do the rear brake lights. Does anybody out there know where the hand brake wire is supposed to attach to this circuit?
Do ANY of you 74 Super owners know where that parking brake wire attaches to the warning light circuit? I’m at a complete loss.