Running Speaker Wire through Drywall

Mantaraydesign,
a Fish Tape.

If you use a low voltage bracket, as I showed in an above post, you will have a hole in the wall approx 2 X 3 1/4 inches. If you push a stiff piece of wire, or fish tape, up through the drilled hole in the basement to the hole cut in the wall above and have someone else watch for the wire or fish tape.
Add a pull wire to the cable/s you will be pulling for future... That is why I suggest drilling a 3/4 inch minimum hole through the bottom plate inside the wall.

Trust me, fishing and pulling the cable will be the easy part.....
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The fish tape is not weighted. It is a VERY rigid piece of metal, but flexible enough to be wound. Rigid enough so that it can be guided. If the space between the studs or furring strips is full of insulation material, the fish will be hard to guide (although it is still possible). Your basement is probably furred out with 1x2’s and filled with Styrofoam sheeting. If this is the case, it will be hard to push the fish through the Styrofoam. However, you can maneuver the fish between the Styrofoam and the drywall. Assuming that you install a standard electric box as an outlet, you will come down the side of one of the studs (the box attaches to the stud/furring strip). That stud will help you guide the fish. Or, you could just cut a 2x3 inch hole in the center of the studs; the end of the fish being somewhere within 7 inches on either side. This is when the coat hanger or wire tool comes in handy. Cover the hole with a plate (you can get "audio" plates/covers complete with RCA type connectors - or just get a CATV ready cover and run the speaker wires where the coax connector would normally be housed - they

Just hire an electrician. They can do this quickly and neatly and in the long run cost less than gathering all the tools, your time and not to mention the cost of damaging the dry wall (that is, I assume, what you are most concerned with).