I am installing some led lighting set ups around the front emblem and hood scoop, and right now i am using some 9v batterys just for the time being, but i want to hard wire them to the battery or another circut, how can i go about doing this? i have a power line and a ground line, i also have a switch inbettween all this mess, my set up right now is great, but if i decide to keep these on long time, I do not want to have to replace the batterys every month.