I have a simple question. Anyone towing stuff with their Model X over some distance that requires charging along the way, How do you do it? The cables on the super chargers are short. If you had a boat or something behind your car, do you basically have to unhook and hook at at every charging stop? Is there some sort of extension that can be added to a trailer so that I can plug in in the back of the trailer and then plug the other end into the car?