I am replacing my current door rocker panels, which are warped, for some better ones I got at a junkyard. What would be the best adhesive to use? I used 3M plastic badge and trim adhesive for the other panel that came loose, but it requires clamps, which was difficult to do. Is there a better product to use, I would really love some of the original tape used by the dealership.. it seamd to work well. And I noticed one of the panels had what looked like Black RTV on the top between the door and the panel, would that work, this is also the only panel that hasnt fallen off haha.