Originally Posted by cavie
Call an electrician or cable installer. They have the "fishing poles" and knowledge to fish the wires up from the bottom inside the walls. House or trailer, no different.
Call someone, what fun is that? Plus actually the construction differences between a house and a trailer of today is quite different.
If you need to run coax look for an access point that is being used already by other wires for lighting and such. You're not going to be able to just snake a wire through the exterior walls since they're basically a frame work with Styrofoam inserts, nothing like a home. You may have to drop the belly cover to make access. Also utilize cabinets, ceiling and closets to get to where you need the cable.