Hello, I hope that I am right in this forum – Transport & Safety – and that I had to replace the standard horn (Golf IV) with the following.http://www.valkmotive.de/…/419 It is loud at 1m distance 118 db and in the shop it says “The horns are approved for traffic, the European approval number is E4 000 317”. Does this mean that I can simply replace them with my old ones without registration or similar? And how much amper needs a normal horn? Thanks Greeting Julian