All of the smartphone audio streaming is Bluetooth anyway so the USB cable is only being used for charging in any case. I haven't tried a different cable - I just plug mine in to keep the phone battery up while streaming from the apps or direct audio files from the phone. (And of course, calls and messages.)my understanding is that the car is capable of fast charging if you use a charging only cable (one that does not allow data transfer between the car and the phone) that is fast charging capable, or you use a standard fast charge cable and just deal with the phone trying to connect with the phone. but if you are trying to use the phone to stream you might not want it to connect to the car..