I am trying to figure out the best way to wire my overhead lights for my 825i. I can see a clear line to the battery from the ROPs to the battery to pick up power but I cant see a clear line to get to the dash to wire the switch. Any idea's on the best path to take to to get a switch wired? I was hoping that there might be some thing already there from JD but I didn't see anything.

Any help, pictures, or schematics would be welcome.

Thanks