Reply to "need help with Wifi DCS and TMCC cable"

Here is the TIU.

You can see the TIU port is a female. It needs a male cable.

Both ends of the TIU to TMCC cable are male, so the "Y" cable would need a female end.

Here is the serial to USB cable recommended by MTH to connect the WIU. It has a male end and needs a female from the 'Y' cable.

Here is the cable from the link above that I think will work. 

To connect the TMCC cable, it would be helpful to have a couple of hex barrel joiner nuts to screw both sides into. Although zip ties or rubber bands should do a sufficient job of keeping the two sides joined together.

George