I would like to mount a cig lighter plug under the cowling that I can fairly easily get to for powering either my cell or GPS (or both with a splitter). First off, has anyone done this? Where is the best place to come off of power? How would be the best way to mount the plug? I'm pretty handy electronically and can figure it out, but just wanted to see if there are any pitfalls or timesavers to be aware of. Thanks.