[. . . ] After connecting this interface to a C`n`Cready Blaupunkt car sound system, you can control the functions and settings via the car sound system. For some functions, you also have access to the PTT button of this interface. These instructions also describe the operation via your car sound system. Please also observe the operating instructions of your car sound system, if the operation described in these instructions deviates from that of your Blaupunkt car sound system. [. . . ] Calling a stored number To call a stored number, u press the DIS button on the car sound system for longer than 2 seconds. To transfer audio files to the car sound system via Bluetooth, you must activate this function in your Bluetooth device. To do so, the Bluetooth device must be connected with the interface and support this function (for further details, please read the instructions of your Bluetooth device). To select Bluetooth audio streaming as audio source, u press the SRC button on the car sound system repeatedly until "BT-STREAM" (or the name of the connected device) appears on the display. Note: You can control the playback of tracks via Bluetooth audio streaming from the car sound system if your Bluetooth device supports it. The functions track selection, playback interruption (pause) and fast searching forward and reverse are available to control the audio streaming. Please read the instructions of your Blaupunkt To call the number dialed last, u press the DIS button on the car sound system for longer than 2 seconds. You can store and call up phone numbers using the memory buttons of the car sound system. Storing numbers To store a number, u enter the number as described in the chapter "Outgoing call". After entering the complete number, u press the desired memory button for longer than 2 seconds. You can connect a USB data carrier with MP3 files with the interface to play back the MP3 files via the car sound system. Note Always switch off the device before connecting or disconnecting the USB data carrier so that the data carrier is correctly registered and unregistered. U press the SRC button on the car sound system repeatedly until "USB" (or the name of the connected device) appears on the display. notes: · If your car sound system features a separate USB connection, an audio source connected to it may also appear as "USB" on the display. For further details, please read the chapter about MP3 mode in the instructions of your Blaupunkt car sound system. Please note that car sound systems with MP3 browse mode require information about the directories of the data carrier and the files stored in them. If these data cannot be trans- You can update the software of the interface yourself to render the interface compatible with newer cell phones. Note: If you update the software, these operating instructions may no longer be current. USB stick) with FAT16 or FAT32 formatting and at least 4 MB free memory capacity · Car sound system for information about selecting these functions, e. Please note that not all Bluetooth devices allow a remote control or support all functions listed. [. . . ] Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation Caution: (pertaining to FCC part 15. 21) Modifications not expressly approved by this company could void the user's authority to operate the equipment This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense. rF Radiation Exposure This equipment complies with FCC RF radiation exposure limits set forth for an uncontrolled environment. [. . . ]