I just recently purchased this tuner from an Estate sale and a part is missing that I need. Not sure what it is, but it goes on the inside back left corner facing the unit. It looks as though it mounts via a screw on the back of the tuner.There is a gray wire there with 3 wires coming out labeled with little stickers with different letters of the alphabet. Also, there are 2 wires labeled the same way coming from the 3000W/300W Switch that go to the missing part also. Any help would be greatly appreciated.
Thanks and 73,