Hi all , been having a great time in our hymer ( 1994fiat ducato )but on last trip when I put indicator on left turn the flasher relay got got and blew the fuse (same if I put hazards on ) right turn is ok , is it common for the problem to be indicator stalk , if so how do I get the funny shape nut with flat edge off to get steering wheel removed , any other possible causes appreciated , thanks in advance ,can tell its mot time early sept lol , nunny,