Very cool! I like that you filed it down and retained the factory light ring.
I opted for a USB 3.0 Quick Charge outlet with Voltage readout. This allows me to keep tabs on how much voltage the alternator is putting out which puts my mind at ease. Not near my car but this is the only picture I have of it at the moment since its a very recent mod. 2020-10-19 17.18.45.jpg