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.
5. Set the top and bottom plates on edge and use a layout square to mark the locations of the wall studs; space the studs 16 inches on center. 6. Lay the top and bottom plates flat on the floor and measure up to the underside of the beam to determine the height of the wall studs.