How do u install a telephone jack that has 4 wires colors yellow black red green?
Ok, this is alot easier then it seems. First, strip about 1/2 inch of the insulation from the red and green wires. Open up (flip over) the jack you are going to use. You will see 4 screws, either colored or marked with a letter next to them. Loosen the red and green screws (marked r and g if not colored screws). Wrap the striped wire around the screw in a clockwise motion (this will help make the wrap tighter as you retighten the screw). Retighten the screws. Replace the jack. You will not need the yellow and black wires at this time. If you add a second phoneline, then you will use those.
