Cool, sounds good. I don't have any worries about it. Its not connected to anything so its not like its draining my battery.
My 7 pin adapter does have the LED's on it so the 12V is always on, but I don't think a LED will drain my battery.
I do need a dual battery setup though, with all my off road lights, winch, etc i gotta watch what i run at one time right now.