Mirror of my new Night Train too short

Nabénd together, after the registration Drama was over I led my 2009 Night Train Gassi for the first time today, but then I had to find out that the mirrors are much too short for me. Have tried all possible settings and have only the choice between shoulder or the rear counterroad, what is going on right behind me and if there is a car I absolutely don’t see. Nu mal quite stupid question: Can you extend it? Is there possibly angled adapter pieces? Does one more night train driver have this problem? WO can I alternatively get nice longer time here? As always nice cabinet! And already a nice weekend!