The factory Jensen was removed and the hole in the roof for the cable to come thru beneath where the Jensen was mounted had to be enlarged some......a little toward the rear as I recall. The directional control was mounted on the ceiling IN the cabinet above where the TV is so made for a nice installation.
As I recall, we put down a piece of roof material to assure a sealed roof before mounting the new antenna which was sealed down with dicor self leveling sealant like the factory Jensen had been.
2012 Fun Finder XT 276 Toy Hauler & Harley Davidson Ultra Classic with Condor wheel chock
2014 Dodge Ram 2500 AT 4X4 Crew Cab 6.4 L Hemi, 373 gears, tow package, Rambox option, Revolver X2 tonneau cover, Equal-I-zer anti-sway hitch.