I have an ICOM 706 MK2 G with the factory HM-103 microphone. The 8 pin modular RJ45 male connector on the end of the mic cable has become damaged. I have some RJ45 connectors and a crimping tool, so I thought replacing it would be a simple matter of looking at the wire colors in the old RJ45 and just stripping the cable and wiring it the same. WRONG ! The colors in the connector do not match those inside the cable. There must be a transition which I destroyed during stripping just inside the cable, because when I cut off the connector and stripped the wire I got a big surprise. Using a jewelers loupe, the colors visible in the RJ45 are as follows: Pin1 = empty Pin2 = black Pin3 = empty Pin4 = green Pin 5 = Either dark brown or black (my old eyes cannot tell) Pin 6 =white Pin7 = blue Pin8 =empty. When I look at the stripped wire I see only the following colors: black, green, white, blue, red. there are also two non insulated stranded wires, one copper colored and one silver colored. Those two look like they might be shielding of some sort but I cannot tell without further stripping the wire to the point it will be too short to be useful. In stripping the wire, it looks to me like the red wire simply ended inside the bundle without actually being connected to anything, and the two non insulated wires also were not connected to anything. No red or non insulated wires appear in the RJ45 connector. I know where the white, blue, and green wires go in the connector, but am not positive about the black wire (is it really black, and the only black wire?). That also leaves me one wire short in the bundle assuming the red wire didn't change to brown inside the bundle. I have no schematic or wiring diagram, and the Instruction manual is no help. Does anyone have a color coded diagram or know what is going on here ? Help Mr.Wizard !