Gap between roof and front cap

Something to note in my photos, the AM radio antenna was already there, but the Satellite dish was something I had added quite a while after I bought the motorhome. I originally had a Kingdome dish and I replaced it with the HD dish. Although they installed the new dish close to the same spot, they put it right up against that front seam. That just made it more difficult to do this job. Also instead of using the old coax route which entered the roof aft of the dish, they ran the new cables up to the front cap and then down into the cabinet and as you can see also put that mount right near the seam. If I had known in advance I was going to redo this seam, I would have made sure all those extra items were mounted no closer than maybe 6 inches to the seam. Would have made fixing the seam that much easier.