USB Cable Unresponsive until unplug and then Replug

[EFG]

I have a 23 XLT with a USB cable that I leave plugged in all the time. When I get in the truck, start up, and plug in my iPhone, it never starts charging until I unplug from the USB plug and plug it back it. This makes it start charging every time. If I unplug it from the phone and plug it back in, no charge.

What is going on here?

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