hi all, my one true fear is the title of this post! im setting up the van for camping and as i have a spare van starter battery in my garage and no money in the bank i was going to use the battery to power my cooler box and usb port while camping. My question is what are the very basic details(pictures if possible) of how to wire the battery under the drivers seat,and power my stuff, oh and a set of ikea led lights. i know i need a vsr split charger, but im scared sh****ss of killing my van electrics, so be gentle with me but please guide me!! thanks , carol.