Power door locks problems

Hi, the power door locks on my 2001 Dodge Durango 4x4 are clicking on and off constantly, even when the car is turned off. I disconnected all of the power locks connections at all four doors and the rear hatch. All I hear now is a clicking sound under the driver's side dash near the emergency brake. I can't seem to pinpoint the exact location. Does anyone know of a realy or switch in this area that may have gone bad?
Thanks in advance.
Dennis

Try replacing the fuse for the power door locks.My Durango was doing the same thing(scared the crap out me going down the interstate)replaced fuse and no it's good to go.