I want to place my receiver in the family room. It has an outside wall. There are no unfinished rooms next door or beneath. Simplest method would seem to be to run the cable in directly from outside. I'd hate to make a hole just for a single piece of coax, then discover I want to add more cables or need to replace it. Should I run a small tube thru the stucco wall from outside into the interior, run my cables thru it and stuff it full of foam to seal it? It will be concealed behind an entertainment centre, but I want to do this in a professional appearing manner as this is a new home.