I noticed this brand new looking item underneath the rubber detachable cover under the steering wheel. I had a key system replacement in 2011 -- is this from that? My car is 2007 SE All Manual Cheapy Model and everything surrounding the (whatever that is) relay has a layer of dirt, dust or...

A while back I wrecked my caliber into a ditch. Ever since then the horn has not worked. As far as I know there is no power going to the horn but the fuse is just fine. I was wondering if its possibly the relay and I don't know where the relay is. I've been trying to find info on it and couldn't...