CENXINY Single DIN Car Stereo MP3 Player with Wireless Remote Control,Built-in Mic,Auxiliary Input, FM Radio Receiver How to remove the car radio panel? 1.Insert the DIN tools into the holes on either side of the unit 2.The tools serve to release the spring clips and also hook onto the sides of the stereo so that you can pull it out easily. 3.Spread the tools apart slightly then pull the stereo out of the dash. 4.Disconnect the electrical connectors and the antenna from the back of the radio. Then lift it out. Note: Our car radio is just for the 12V cars , not for the 24V bigger cars. Bluetooth 5.0: The built-in Bluetooth hands-free function of the car radio allows clear phone conversations,. Control it all with the wireless remote. For memorized station, the yellow line should be connected to the car's battery line. Power: 260 watts (4x65W) Radio Frequency: 87.5 MHz - 108 MHz TF Card: Support up to 32GB Audio Formats: MP3, WMA, WAV, FLAC FM Radio: 12 stations can be memorized ISO Interface If the power plug is not disconnected, the station will be saved. Why is there no memory function? 1. The yellow and red lines are connected together. Please connect separately, yellow to positive, red to key control 2. The yellow and red lines are anti-polarity. please exchange places Install the remote control in the steering wheel USB 2.1A charging port, quick charge Support iOs , Android device Customer Reviews Price Built-in tuner type FM FM+RDS FM Media type MP3; WAV; WMA; FLAC MP3, WMA, WAV, MPE MP3; WAV; WMA; FLAC Screen light 1 color 1 color 7 color Bluetooth version Bluetooth 5.0 Bluetooth 5.0 Bluetooth 5.0 Working voltage 12V 12V 12V Fuse 12A 12A 12A Model N1901 R1901 N2002