If you want to enjoy DAB radio, you should also have a suitable aerial if your car does not already have one.

I would recommend a DAB+ antenna here, as normal radio will soon be switched off in Switzerland

Yes, you need a DAB antenna, I bought this Pioneer CA-AE-DAB.001 model on Galaxus, this turns your existing antenna into Dab, or you can buy this Pioneer CA-AN-DAB.001 DAB+ Disc Antenna model to mount on the right side of the front glass (see video on https://dabplus.ch/it...) .

These are the best: Item number 2729152

Yes, if you want to receive DAB+ stations, you will also need to buy an adhesive aerial!