Not sure if I can help since I had to pick between the tonneau and the cap and chose the cap. It also won't be installed until tomorrow. The guy did say that the tonneau is easier to put on and take off. I think with the cap what will be difficult is the wiring for the locks and lights.I see that ARE has a tonneau cover out for the Ridgeline from:
My question is has anyone installed one on a G2 and comments?
Were you planning on getting one with the locking system that works with your Honda locks? They offer that on both the tonneau and the cap. I was planning on taking pictures tomorrow showing where they tapped into the wiring system.