1 Din 4Inch Car Radio Touch Screen Bluetooth Music Handsfree MP5 Player TF USB Charging Remote Audio System ISO Head Unit 7805C

SPECIFICATIONSBrand Name: BQCCHign-concerned Chemical: NoneOrigin: Mainland ChinaDin: One DinDisplay Size: 4"For Vehicle Brands/Model: universalMax External Memory: 64GDigital Media Format: Mp3Digital Media Format: MP4Digital Media Format: WMADigital Media Format: JPEGOperating System: LinuxVoltage: 12VChoice: yes Tips: This product is a standard 1DIN general car player, please make sure that the size of the product is suitable for your car before purchasing. Please see the product description below for detail Q&A Q: Do not turn on, the screen does working well? A: Please check whether the power cable of themachine is connected incorrectly or incorrectly. The normal wiring method is asfollows: the yellow wire (B+) is connected to the 12V cable that is alwaysactive, and the red wire (ACC) is connected to the key cable of the originalcar. The method of judging the key cable is as follows: the key cable is 12Vwhen the car is started and 0V when it is closed; Black connected with thenegative pole; Check for blown fuses at electrical outlets in cars andmachines. Q: No sound from the horn? A: Please check whether the horn wire of themachine is connected correctly. Please connect the horn of the original carstrictly in accordance with the interface definition of the manual or the bodylabel. Otherwise, the power amplifier chip of the machine may be damaged. Q: Can't remember the last radio station and musicyou set? A: Please check whether the red and yellow wiresare reversed. Make sure that the yellow wire (B+) is always connected to theoriginal car cable with 12V voltage, and the red wire (ACC) is connected to theoriginal car key cable. The key cable is 12V when the car is started and 0Vwhen it is closed. Q: Can't read or play SD, USB music and videos? A: Please use 8G or 16G storage card or USB flashdrive. Some large-capacity storage devices may not support it. Format thestorage device to ensure that the storage device's file system is the defaultvalue; Partially encoded video or music may not be recognized by the machine,please use common format media files. Q: The Bluetooth connection fails, or somefunctions are abnormal after connection? A: Please use your mobile phone to search forBluetooth of the machine, the name is "CAR BT" or "CARKIT"; Delete the devices that have been paired with but are not connectedto the phone. Some Bluetooth devices that have been paired with each other maycause the phone's Bluetooth cannot be paired with other devices or its functionis abnormal. A: The above involves disassembly and circuitproblems, please seek professional operation, so as to avoid damage to your car.