Car MP3 Player Converter 3.5 mm Male AUX for Opel Astra H Corsa D j insignia g vectra c mokka zafira Product Introduction: Car stereo 3.5 MM AUX interface is not have play MP3 audio decoding function, so can't use this cable only have play MP3 audio decoding function of GPS, CD, DVD audio: to use this cable line 3.5 MM plug GPS, CD, DVD audio on 3.5 MM AUX audio interface, on the other side of USB plug in USB to realize auto play songs U disk, after the line 3.5 MM plug on the car stereo AUX audio interface, the other USB connect on the USB flash drive. Realize the car playback U disk songs. Play music for pure sound. Special reminder: this product has compatibility, not all models can be used, it is recommended that you carefully read the car manual, confirm that the car has this function to buy, do not have this function of the car, can not use this type of wiring, careful purchase!!! Package: 1x USB and to 3.5 mm and charging cable