I have just enough knowledge about electrical stuff to get in trouble... So that is my background, and hence why I am asking before I do something stupid.
I have a device I want to power that is missing its plug. I purchased a plug that has the same power stats, but upon getting it in the mail it seems that the device requires a barrel plug that has the outside positive, and inside negative. Of course the one I ordered is opposite. My question is: Is it safe to cut the wires in the middle of the cord somewhere and swap positive so instead of being on the inside of the barrel, it's on the outside, and negative so that it's on the inside.