Note: please confirm if the voltage fit and then install.Our prodcut working on 12V only.Please confirm the installation size of your car.Installation notes:Please refer to the installation and wiring diagramInstall the metal sleeve:Refer to the installation diagram,insert the metal frame insert he instrument panel,and use the screwdriver to eject the card on the metal sleeve to secure the position.Power and grade: Positive level connect to car battery positive,negative level connect to ground(battery negative or bottom of the car,note:in order to prevent short circuit,connecting the battery negative after all installed)Specification:Support USB/TF card readerSupport audio: MP3/WMA/WAV formats and so on.Support folder play functionSupport remote control.Rotary electronic volume controlMP3 play supports pause /preview/repeat/random play and 10 tracks up/down selections.Electronic type bass/treble/left and right balance/front and back balance volume controlFront AUX audio input hole and rear terminal L / R audio RCA output hole.4 track high-power output (4 high-power loudspeakers)Work Voltage: DC12VFM Radio .Frequency: 87.5-108.0 MHz ..Practical Sensitivity: ≤15DbStereo Resolution : >25DbSNR(Signal to Noise Ratio): >60DBSupport Music Format: MP3/WMAThe Display Supports: ld3 DisplayDistortion: 0. 3%SNR(Signal to Noise Ratio): >60DBPanel size:188*130*50mmInstallation dimensions:178*130*50mmPacakge size:21.5*8*7cmPacakge weight:590gPacking list:1* Host2* Installation wires1* Remote control(free gift)1* User manual(Support English, German, Italian, French, Spanish Languags)