I put some guages in my truck while my computer was down the past two months. I've got the temp. and oil pressure guage in and the lights hooked up fine. Now comes the am-meter. The directions are not very clear as to how I should hook it up. They say all of the current that is used while the engine is on should go through the guage first. I've got 6 guage wire and ends and all the other odds and ends. I just need to know where to begin.