jutn tach! I got a ventilation for the two rear side windows in the omega b and installed them for a trial. the air ducts and the ventilation grilles are already in there. now my actual question-with which material are connected the fan motors to the channels. there are clips or nuts/screws. and how do I fix the fan motor on the door – also with clips or screws? happens to have one in the bag and can look at it? would be j a mal ́ne nice measure of you many thanks already in advance and until recently! agemo