Hi guys I'm looking at buying my first 4x4 - a uk spec jimny probably be a pre-05 model and would like to ask a cupla questions, hopefully some kind hearted soul will enlighten me! do I have to worry about something called locking wheel hubs on this car? and I've also heard that these cars are not the usual negative earth ie the body is not connected to battery minus - is this correct? reason I ask is that I would like in the future to add some spotlights to the front of the car. cheers.