[. . . ] The instruction manual contains important information and warnings about the operation of this unit. nOTE: Text passages with this symbol indicate particular information, which is very important for correct operation. This unit is designed to be used in a vehicle with a 12V battery and negative ground. Do not operate the unit in any other way than described in this manual. [. . . ] Once setup, the parental lock is released only by entering the correct password. To secure the unit from theft and later use, it's possible to enter a four-digit anti-theft code. If the anti-theft code is activated and the unit will be disconnected from the power supply and reconnected again, it's necessary to enter the anti-theft code to start up the unit. NOTE: The delivery status for the input of the anti-theft code is deactivated, so it's not necessary to enter the anti-theft code, when the unit was disconnected from the power supply. Touch the anti-theft code icon and use the keypad, which appears on-screen, to enter the four-digit anti-theft code and con rm your input by entering the same code a second time. nOTE: The delivery status of the anti-theft code, with the freshly unpacked unit is deactivated and you must activate it manually. Please write down the anti-theft code and keep it stored in a safe place. If the anti-theft code is falsely entered three times, it's necessary to enter the super code to unlock the unit again. To unlock the unit with the super code, it's inevitable to send it back to an authorized ZENEC-dealer. If you want to change or deactivate the anti-theft code, you must enter a valid code rst. The TP button lights up orange when the radio station provides traffic announcements. The TA button lights up orange when a traffic announcement is transmitted. When AF and Region are activated, auto tuning to those stations within the region is assigned. When AF is activated and region is deactivated, auto tuning attempts to nd stations without any region boundary. When AF is activated and a radio signal is too weak, the tuner automatically switches to the best available frequency. When TA is activated, the unit will auto seek an available TP or TA station. When TA is activated and a traffic announcement is received, the current playing source is overridden by the traffic announcement automatically, if the tuner was last set to the FM band but not, if it was last set to the AM band. When traffic announcement is over, the current playing source will be resumed. Touch to enter the PTY menu, then touch to select a choice in the PTY menu. The unit will auto seek the next available PTY by increasing tuning frequency until the program type matches the PTY, if no match is found, the tuner will return to original radio and "None" is displayed. Preset radio stations: Touch to recall preset stations or touch and hold to store a station, (total 6 stations for each band). The unit automatically switches between mono and stereo, depending on the reception quality of the radio station. [. . . ] Once you have started a route guidance in the navigation mode you can change to an audio source that is supported by the splitscreen mode, by touching the [ ]-icon to activate it. NOTE: If you are using a compatible ZENEC DVB-T tuner, you may operate it using the touchscreen of the unit. AV MODE If you have connected an external device to the unit and want to use it, touch the AV-IN icon in the main menu. You can set the source via setup and choose between front and rear input. [. . . ]