Does it plug into the cigarette lighter?
Yes, I fixed one up in the back of the van, i have my own tea/coffee making facilitys great on frosty mornings.
I have a split charge system on the van, I took a lead from the backup battery thats constantly on charge do not take it from the main pump battery it will draw a lot of energy and flatten it quite quick or keep your engine running while the kettle is boiling.