English seems to be a much better option for me to understand
I guess your chrome translation was a little bit off. I don´t have a wireless android solution on my AT. What I desrcibed in my post is how to mirror the whole display content from an android device to the AT display, for example to use a non official Android Auto App like a bike navigation. But during the whole process the phone is connected via cable to the usb port.
I guess there are wireless transmitters that enable exactly that what you are looking for. But I don´t know if it works with the AT. Those transmitters can be found at the big chinese online warehouses.
Thank you very much for your answer, Stubbi!