On the first power-on and if the ZENEC device was separated from power, I cannot find a radio station?

AW: Right after the first power-on process and after separation from the vehicle battery, the Z-E3766 will perform an automatic radio station search. Depending on the vehicle location and scanned frequency band the station search process may take up to 2.5 minutes. During the search period radio stations cannot be accessed nor selected by the user.