Was installed a Pioneer AVH-X3600DAB. Was supplied by Amazon, as always, the next business day.
Arrived is a small box with ports without instructions, but who is technically savvy, a little gets the installation down very quickly, all the cables are labeled.
I still have a Din on ISO antenna adapter so that the antenna requires smart fit on the crossover.
Costs about 1-2 euros. So rather before again look if you do not even need this adapter plug.
The red plug of the crossover has been connected to the switch from Radio Plus.
Not quite clear to me was that the crossover phantom power from the DAB radio additionally required or not, I have this enabled times in the radio and lo and behold, all the best.
DAB stations with no end (Dortmund area), no disconnections. In FM mode and all the best, all the channels available, no noise.
I can recommend the crossover each. Installation is also faster than with an adhesive antenna.
From me so smooth 5 star.