hey super8 Welcome to the forum. You can go to the local auto parts, and pick up a cig lighter socket off the shelf (generic) for about $5.00. I would use a 14-16awg set of wires dirrect to the battery, and install a 500 milliamp fuse. There will be NO draw as long as nothing is plugged in to it. I forgot to mention you should get one that has a rubber cover to prevent anything from falling into it, and shorting the fuse. It's a REAL simple mod., and one that I have been wanting to do for quite some time.