Originally Posted by billrector
I assume the ones you are replacing worked...at least at some point? The USB ports should be marked with a (+) and (-). Just make sure you keep the polarity the same on your new one.
There are no (+) or (-) markings on the original installed OEM port, thus my uncertainty.
The old original port has hardwired black and red wires.
The black wire is attached to the white supply wire and the red wire attached to the black supply wire.
The new ports have (+) and (-) markings on their connectors.
So....can I trust that the original port's red wire is (+) and thus indicates that the black supply wire is to be attached to the new port's (+) terminal?