Clicking noise under the center console

My car started making a clicking noise when I was idling the other day. Now it’s getting faster and only does it for about 30 sec. when I start the car. A mechanic told me he thinks it has to do with a “relay” something or other. Has anyone ever experienced this?

Yes, it probably does have something to do with a relay, but without knowing what kind of car you have it’s hard to be more specific.