I own a 2018 Dodge Grand Caravan. It's the baseline model with absolutely no frills or addons whatsoever. And that included things like USB charging outlets. So I decided to add a few outlets of my own.
The USB outlets were purchased from amazon and are wired in parallel with the cigarette outlet so that they will follow the ignition. The Anderson Powerpoles are wired directly to my Ham Radio fuse box in the back of the van and are fused for 10 Amps. Again, the outlets were purchased from Amazon. I also purchased a set of large step-drill bits. The required holes for the outlets were 1-1/8" and you can see the remnants of the panel on the floor. I was able to source a replacement panel just in case I sell my van. I can then return it to factory condition.