Identity of box under dash

[MarkRiv]

Does anyone know what this white box is under nearside dash? Getting car stripped and ready to race and now have clicking noise from this box when ignition on. It has happened since I disconnected and moved battery and put in the isolator switch.  It’s purely annoying and doesn’t cause any issues with starting or running the car.  I’ve tried clicking the key fob, but has no effect.
Any advice to identify and stop it appreciated.

[The Bounty Bar Kid]

Ignore wrong white box. I was thinking the one under the head unit.

Edited February 16, 2023 by The Bounty Bar Kid