I have an old antenna outside my house and the cable coming down from it has 4 wires and I was wondering if there was any way to connect it to a coaxial
the cable coming down from it has 4 wires Sounds like a control cable for a very old old rotor. Take a good look at the antenna. Is there a rotor motor? Can you see another cable coming from the antenna? Also antenna wire that is exposed to the weather doesn't last forever, so if you do find it, it may not work very well any more.