After reading posts re TV reception upgrades, I decided to install the Winegard UHF attachment and the signal tuning plate up front where the 12v
plug in plate was. Project advancing well until I attempted to stow the wires in prep for attaching the face plate. Then I saw this… that's the cable wire with the screw hole in it. Good that I found it. My coax connectors don't seem to fit that cable so another run to Home Depot.
Before anyone asks -- that plate had never been off so it had to be a factory 'gift'.