Step 1: Trace the Holes From the Provided Face Plate to the Existing Face Plate.
Step 2: Measure the Width of the Hole for Drill Bit Selection
Step 3: Punch Marks for Drilling.
Step 4: Drilling
-Don't forget to slow down your drill for the bigger bit! Also, sharp drill bits and some oil greatly improve the experience.
-With the pilot holes, it's easy to align the bigger drill bit.
-The drill holes being the width of the USB port, what's left is to bridge the gap between them!
Step 5: Bridging the Gap.
Step 6: Deburr
Removing the burr on the outside was easy enough, but I had to use something else for the inside : A mildly worn utility knife blade.
Step 7: An Extra Step for My Particular Setup
I needed to break of those tabs otherwise the outlets don't fit in the metal cover. Your mileage may vary!
Step 8: Test Fit
It's important to check how well the slots fit over the USB ports of the outlet before putting everything back together. I had to touch up the milling a couple of times before the plug would fit through properly.
Step 9: Enjoy!
Well, not without putting everything back together beforehand...
The benefit of this setup is that now I don't have to bring my USB rechargeable bike lights to my computer for charging!