car audio install question

Just wanted to put my 2 cents in. Yes, the remote is a trigger, but its not like a 'quick on then quick off' deal. Once you turn the key that trigger wire becomes 12volt constant. It is just controlled by starting the car. Think of turning the key as a simple switch. When in doubt, please use a fuse. Also, a multimeter will help you find the correct wire on the column and pose 0% risk to the car's internal computer system. Just another FYI, if you were to say probe the wrong wire and send voltage, you can fry the computer. You do not want to even think about how much money it costs to replace one of those. Moral of the story, never trust an online wiring guide. Use a multimeter to be sure.