metasac

Hey fellas sorry to intrude. First of all, let me say that I'm happy that this is still a live forum and we haven't all abandoned such forums for FB. I'm the US and have a TE21 w/ a 1.8 3TC. While y'all are on topic of guessing what certain electrical boxes do - can anybody tell me what this thing at the base of my fuse block is? It started buzzing recently - no doubt due to a short I created by daring to *touch* a bundle of wiring - and I unplugged it. Everything still seems to work, including starter, flashers, wiper, and all lights....