When I am running speaker wire through walls, do I need to avoid placing the speaker wire in the vicinity of electric cables for the house electric wiring? If I need to avoid the house wiring, how close can I get with the speaker wire? Can they cross over each other at various points, or run along side each other at all? I would be using 12 gauge wire with the protective wrap, which does not provide any shielding.

M60's Rotel Nad Music Hall MMF-5
M80's VP150 QS8's Sherwood Newcastle Panasonic Plasma
Algonquins