Instructables

Step 4: Wire the Jack

Picture of Wire the Jack
Wireless Microphone Mod (4 of 16) (Custom).jpg
Strip the ends of the two old microphone wires and solder them to the lugs of the 1/4" guitar jack.  I guessed that the red one was signal and green one was ground, but I don't think it matters.  If there is an issue, try flipping the wires.