I have a couple of those CTP 12 volt to USB converters, they seem to work very well, you can't have enough USB and 12 volt sockets in a car.
Just when you think you have enough sockets, someone comes up with a must have device and there is no where to plug it in.
Here we go... not said this for a while... When we first got our Mav, over 21 years ago now, it had one 12 volt socket under the radio, it now has one for rear passengers, one in the boot, and a couple of USB sockets, how times change.
Very neat for the dash cam, I hate wires everywhere..
Rustic