Blue Sea's cigar plugs are the same way until you disconnect (cut the power to it) the LED inside while soldering the wires in. I wonder if you could do the same with the USB?I have install a couple of the Blue Sea plugs and they are great. One small complaint...you need to switch the plug otherwise the LED is always on if powered.
Very good price from Sierra BTW
I have a blue sea Dual USB port in my truck and I love it. The Blue Sea Socket is quality construction and has survived several road trips and camping trips charging all sorts of electronics. I would rather have a fused outlet that i know is running the appropriate voltage than to buy some cheap cigarette light usb adapter that will break or get lost eventually
So I got a couple of these installed today, and thought to take some photos.
View attachment 128564
View attachment 128565
View attachment 128563
The wife is quite happy she doesn't have any cord limits anymore!