my '02 Sub has three 12v 'power ports' in the dash, one is a cig lighter depth. Another on the back of the center console for the 2nd row and another at the right rear of the cargo area by the 'D' pillar. Those are all 'factory'. I want to add a few more, including a couple marine-grade ports outside on the roof rack supports so I can move an LED area light around.
The storage platform / drawer setup I'm designing will include a 'power module' which will have ports facing fore and aft with additional 12v ports, 5v USB, inverter-fed 115V outlets and also some 12v Anderson PowerPole connections (farting around with HAM and CERT too, as well as building a vehicle to take into the high deserts). Thinking about adding some batteries in that as well and a rooftop solar panel setup, so an inverter in there too. I want to be able to power / connect just about anything. Even thinking about a fat power feed for a receiver-mounted winch with an additional set of jumper cables that can be plugged into that port so I can jump another vehicle from my rear bumper a la military truck slave cable. I can take a nice long heavy set of jumper cables and splice in a big powerpole connector near one end, so they can be used either 'normally', or pull one set of jaws off and jack them into the rear port. they make big fat connector variants for 0/2 gage cable
I've likewise used their smaller modular connectors for a variety of power connection options for my handheld HAM radio.