I'm considering installing a roof rack myself on a 2010 CR-V. I haven't decided whether I want a combo roof rack (rail and cross bars) or just the cross bars. Regardless, how do you install these? I saw the roof has 2 black plastic strips which some plastic tabs or covers that look like they are to be removed to install these racks. Is this correct and how do you safely remove these things? I'm still looking for instructions for this but any tips?