Does one of you pros know if there is (or was) any Navigon device which has a minijack-plug for headphone and TMC
This minijack-plug should be used as Audio-Out (headphone) or as TMC-Antenna-In. The function of the minijack schould be selectable in the software.

thanks for your help.

My Navigon 7000T has such a plug. However I did not find a possibility to select one or another in the software. If I just stick in any plug with some wire on it not too far, it wil function as TMC-antenna and the loudspeaker remains functioning. If I stick in a headphone plug to the end, the loudspeaker is disabled and the wire of the headphone functions as a TMC-antenna as well.
T.