I am in the process of getting different wall mount speakers for my side surrounds in a 5.1 system. Does anyone have links to any articles regarding how to pull speaker wire behind the walls? My home has drywall over studs and insulation. Also interested in necessary tools and level of expertise to install. I will run the wires along the outside of the wall up to the point on the floor directly below the the proposed location with hopes of going at that point into the wall. Thanks for any suggestions or links.