I know the Rally version has a power accessory plug but what about the regular L model. I found this under the seat and was wondering what it is. Hopefully it's a similar power accessory plug.......anyone know? Addendum: Figured out this is a data connector, but that still begs the question, where is the best place to connect in a switched power accessory ie: only on with ignition on. I want to add a usb outlet to power a cell phone for maps app.