A speaker's wire plugs are generally red (positive) and black (negative). Red wires connect to red plugs, and black wires connect to black plugs. If a speaker's wires contain different colors, the wires should be matched to their plugs by their positive and negative symbols. Full Answer >.
Finding wall studs. Wall studs in modern homes are spaced 16 inches on center -- that is thedistance from the center of one wall stud to the center of the next is 16inches. In older homes, studs may be 24 inches apart, or spaced irregularly.
To fix a large hole you will need to cut out a piece of the wall all the way to the studs on either side of the hole. This will allow you to attach a new piece of sheetrock to the studs. 1  With your sheetrock saw cut down along the stud and remove sheetrock. 2  Then with a razor-knife cut down at the center of the stud.ery small holes are usually caused by nails or screws and can be repaired easily and quickly with spackle. 1  There are a variety of spackling pastes for sale. 2  It's usually a good idea to get a non-shrinking spackling paste, so that a crack does not develop at the seam between the wall and the patch.