Hey guys I'm getting ready to hook up a switchboard in my car to be mounted under my new headunit. If everything goes right, it'll control 4 interior blue cold cathode lights and 4 trunk mounted sound activated cold cathodes that'll beat to the music. Anyway, inorder to hook my switchboard up i need to get 1 + and 1 - into the interior of the car. I heard about a way to do it using a grommet or something. I really dont want to drill through the firewall so is there anyway i can do this??? Thanks a lot!