Part number for button plate from TRD Offroad

I'm looking for the part number for the button plate up here:

The centre piece where the rear locker button is. I want to put a USB port up there for charging the GoPro!

I tried searching but alas, I can't find it. Thanks!

 

Sorry I don't have the part # but that's a great Idea.

 

To clear any confusion as I imagine I was not clear enough. I don't have the locker button in my TRD Sport.

Thanks MoQS! I have been complaining about the battery life in the gopro so I figured i'd try to find a less wirey solution.