I am wanting to add interior led lights to the inside of my boat so I can see to tie knots when night fishing. I have a center console and it has a switch bank of about 8 rocker type switches. It appears the switches are on a " bank ". My question is does power from the battery go to the bank and supply power to each swith or does power go to each switch individually. And how would I go about wiring lights to one of the switches. Thanks