It says in the documentation that it needs a certain amps (?) to operate properly, and I found that to be true. If it is underpowered, the unit will engage / disengage every couple seconds, making it pretty much unusable.
Cigarette lighter: The unit come with a cigarette lighter adapter and if you use the one up on the little dash tray area, it provides enough power for it to work properly. The issue I have with this is 1) I like using that area for other stuff - having the cord and cig lighter adapter in there takes up some space. And 2) I believe that gets constant power - even when the truck is off. I prefer not to have that (some people may want that)
There are 4 USB ports under the radio - two larger ones and two smaller ones. These do not provide enough power to the unit (as described above) so do not use them
The last place I tried was the USB port in the top tray of the center console armrest (I have the front row bucket seats). This port DID provide enough power to it and it turns off when the truck is turned off. So I got a 6 foot USB cable and routed it from the wireless charger immediately into the air vent right there (pulled the center dash off which is really easy). I ran it behind the dash so it came out the bottom - into the main center console area and just ran it to the back and then tucked it in the back of the top tray and plugged it in. Works good and a 6 foot cable seems to be the perfect length. I can post pics if someone wants.
NOTE: I have the 8" screen - I believe everything is different if you have the 12" screen. The mount that ships with it is different and other stuff like routing the USB cable may be different.