door sills

does anyone know what wire I need to wire these to, I got the ground and only found the permanent live, does anyone know what wire is live when the car door opens or when you unlock the car ?

Hi All I bought a 2012 S4 last week - very happy :welcoming: It's Ibis White, so obviously shows dirt easily, which isn't a problem other than the door sills can't stay clean at all. I thought the door blades would protect this, and the doors seem snug, but water spray seems to get in. Any...