I have a HB Helix 10" mounted near the console. To power it, I installed a small 12v tractor battery under my seat. It is a short run from the battery to the Helix, and now I have one dedicated battery just for this unit. I know just enough about electrical stuff to know not to touch the black and red wires at the same time. So for those of you who know about these things: Is my setup ok? I'm not facing any potential damage to the unit, am I?