So my car charger wires pulled out of the mini USB connector. And I know that the car charger only has two wires connected to the USB connector. I opened up the housing that the mini USB connector was in and I see there are only two solder connections. There is not enough evidence to know for certain which wire was soldered to which solder connection. So the question is this: Does polarity matter? Since one wire connects to the button part of the car charger that is inserted into the cigarette lighter receptacle and the other connects to the side part of the car charger, does it matter to the phone what direction the juice flows through the phone? Just trying to save some money but do not want to take the 50/50 chance of frying something.
Any help would be appreciated. Thank you!