Resurrecting an older thread here, but I wanted something similar.
I have a 2017 Titanium Edge and I found that this usb car plug (below) worked perfectly and only costs $10 with no modification to the car.
https://www.amazon.com/AUKEY-Charger-Output-iPhone-Samsung/dp/B00M6QODH2
It fits into the front passenger and center compartment flush and the stock cover will close with the caveat that the door flap does catch on the edge of the USB plug. I remedied this but taking a knife and shaving a flat edge on the USB plug that faced the door hinge. Once I trimmed that up, it fits flush and the usb door closes perfectly. It's worth noting that the second row charging cover is a little bit bigger than the front passenger and center console so no trimming was necessary and the flap closes perfectly without any modification. I like this because it looks like the usb chargers are oem, the doors close all the way, and if I need to use something else in the adapter I can still remove the usb plug and plug something else in instead.
It's worth noting this one above will charge up to 2.4 amps for each port, which is faster than the 2.0 amp smart plugs that come with the car but are slower than the power IQ and Quick Charge 3.0 standards.
If you want a quick charge 3.0 capable port though to charge at 3 amps, Aukey also makes this guy (below). It has the same dimensional size as the one above that I have except that it's a single port 3.0 Quick charger. So you should be able to plug it in and still close the doors.
https://www.amazon.com/AUKEY-Charger-Charge-Samsung-Galaxy/dp/B01KZHKF4I
I also purchased a few LED usb plugs, because I liked the blue glow at night, that were supposed to be flush mount by Torras and Ainope and neither one of them actually fits flush. They're about 1/10th of an inch larger than the ones above and they both stick out so you can't close the doors (even the larger second row plug won't close).
Anyway, if someone wants a stock look without taking the car apart, the above should help.