Clicking sound from dashboard

Hey guys,

I have recently noticed a clicking sound (such as a relay) coming from around the dashboard (right of the ignition key and left of the radio). The click is consistent, and repeats every 10 seconds, even when the key is out. Not to be confused with the awesome blower motor sound from the right side of the dash!

2009, TRD Sport. The only related upgrade is the radio/nav. but the noise doesn't seem to be coming from that area.

Any thoughts before I bring her into the shop?

Thanks in advance...

 

The only things I see in that General Area is the Tire Pressure Monitor (TPM) Monitor ECU and the Transponder Key Amplifier.