How to Use: 1. Loosen the bolts of the center control panel. 2. Remove the trim of the center control panel. 3. Remove the original car's central control panel and disassemble the original car's host. 4. Connect the cables according to the wiring instructions in the manual. 5. Power on the vehicle and check whether the new MP3 player is working properly. 6. After the test is completed, replace the control panel Specification: Item Type: Car Radio Receiver Material: ABS Voltage: 12V Type: Car MP3 Panel Lighting: Colorful Lighting Mobile Phone Connection: Mobile Phone APP Connection Radio Band: FM/AM Power: 60W Bluetooth Model: Version 5.0 Radio Frequency: FM 87.5-108MHz/A522-1620KHZ USB Interface and Version: 5V/2A USB Charging Interface + USB2.0 Reading Interface Input Port of Alcohol Tester: Yes Supported Audio Format: MP3/WMA/WAV/FLAC Remote Control: Silicone 21-key remote control, requires 2 x AAA batteries, shipped without batteries Package List: 1 x Host 1 x Alcohol Tester 1 x Tester Cable 2 x Host Wiring Harness 2 x Disassembly Key 1 x Manual