Coomoors USB Female to AUX 3.5mm Male Jack Plug Audio Data Charge Cable(Black) Please make sure your car have the mp3 decode function, that can read the mp3 file from U-disk Make sure your car has aux 3.5mm port Only used on car aux by U Disk,Can not support mobile phone and ipad etc About your car with or without the audio decoding function,you can check your car manual or ask your auto 4S shop.