Originally Posted by OUR5T8BIRD
Frank: This may help. If your horns have been moved years ago from behind the bumper up to the fender well, just below the regulator, the relay may be siting below the horns and out of sight .
Thanks for that ourbird, my horns are indeed inside the left wheel well area. Maybe that I didnīt look too good yet, but I didnīt see anything what looks like a relay. It is very well possible that the relay was moved to under the dash, so I will do some investigations there as well.