When the manual does not tell you, you can turn to inspection of the boat or boat parts.
The wires often run in a conduit (sometimes a pvc pipe) that it attached to the front of the mast. Look for a series of rivets or screws in a line down the mast. They are spaced on the mast. Often found above and below the spreaders.
You may see the conduit when looking into the mast near where wires/antenna wires enter the mast and at the base of the mast.