Clicking noise from parking brake area

Hey guys,
I’ve been hearing a relay like clicking noise from the parking brake area that only appears when driving over 50mph and goes away when I slow down again. It clicks faster and more frequently the faster I drive. Since it only does it at high speed it’s impossible for me to pinpoint where exactly it’s coming from. Any ideas? Thanks!

 

What are you calling the parking brake area?

Parking brake actuator is in different location between manual and automatic. And the adjuster for the parking brake is under the center console. The actual parking brakes are on the rear wheel area...

 

You’re right, pretty bad description on my part, I’m talking about parking brake pedal on automatic, so I should say somewhere underneath the dashboard where the parking brake pedal is...

 

This is a drawing of the relays etc in that area. The Body ECU is also there.