2006 MCS convertible. Can someone please tell me where I can find the horn relay? I checked the driver's side fuse box (found the fuse). I also checked the engine compartment fuse box (where most relays seem to be) and still can't find it. Anywhere else I can look? I had a situation today while driving and the horn starts honking for no reason intermittently. Then it started honking continuously. Pulled over and pulled the negative battery cable and waited a while which did not help. Pulling the fuse helped. Figure I'll check the relay next.

 

It's on the driver's footwell fusebox - but it's mounted on the back side so you have to remove the whole thing to get at it.
Someone can correct me if I'm wrong, but I believe it's soldered in place. So best of luck!