I would like to avoid using a visible antenna (mainly because of the additional holes in the body and also for optical reasons).
That's why Chester's solution sounds interesting.
If a hidden mounting is not possible, I would also use the classic rod antenna and an active splitter (in my case with Kenwood KDC-X7200DAB, also with app and iPhone as a remote control).
Just remember that you cannot use your iphone to control your radio while driving.
