Well after alot of research and been so busy at work I bought a dmax.Got a demo and pretty happy.Now my question is,there is a redark under the bonnet and two Anderson plugs in the back,when the red light on the redark is on there is power in both plugs.Does any one no how this might be set up(can I just put a second battery to one of these plugs and if so do I need to use a fuse) Thanks everyone