tanfixr

At the foot end of the bed behind the exhaust vent, there's a 4 pin round female connector. Plugged into that should be a 4 pin plug with two wires coming out of it.

If that is the case, and is what you're talking about when you say they cut the wires, then tie those two wires together and your bed should work.

If it does work, then those are the wires that go to your Tmax 3A, or whatever room control you are using.