I got the Fios TV one system yesterday. I have a problem with the coax cable. The wall plate for the cable I'm using now was put in the room next to mine and a hole was drilled through the wall and the cable fed through. the instructions say to screw in the new black coax cable directly into the wall plate. The wall plate is in the next room. So my question is, can I use the existing coax cable to hook up the Fios TV One mini? Thanks