Yeah, I use the Arlington recessed mount + TopGreener outlet with USB ports for my dashboard setup. So I didn’t have to worry about the USB charger space.
Here is the TopGreener outlet I use.
https://www.amazon.com/TOPGREENER-TU2153A-Charger-Resistant-Receptacle/dp/B076PKVPHQ/ref=sr_1_3?crid=58M1D4KLK9HO&keywords=power+outlet+with+usb&qid=1560962168&s=gateway&sprefix=power+outlet+with%2Caps%2C162&sr=8-3