With the old HTC One M7, I had the original car dock, which was fine except it forced me to remove the case, and it also scratched the back of the phone a little if dust was trapped while sliding it. So I went with a universal one this time.
But I still want it to go to Car Mode once the power cable is plugged in. I know a resistor between pin 4-5 on the USB cable will probably do the trick, but I am looking to buy a ready made cable instead of cutting the insulation on an existing one to add the resistor then wrap it with a tape. It's ugly.
But I can't seem to find anyone selling those, does somebody have an idea where can I get one of those?