The bars come with plug and play that is meant to go to the interior light up front. To do this it goes up under the seat, under the carpet, through the dash, up the A pillar and across the headlining. This is how I’ve done mine and it took about 2 hours in total. A much easier way would have been to go from the step light feed in the Kombi. That said, if you have to go via the A pillar etc it really isn’t that tricky.. there is plenty of info on the forum about removing bits of trim etc.