vhf connection

[Sallysea]

Hello again, as I continue to increase the size of my system, the various network connections become interesting. The system is simple to understand but what is missing and your help is appreciated is in the hardware.
I have the supplied seatalk backbone and have plugged into the 3 white connectors the radar data, the external GPS antenna and out to the MFD. All three now used and works. What is left is the vhf 60. The connection cable I have left has white ends. what do I need to hook this up to the mfd? My c127 only has one seatalk connection and is used. I did the 0183 and so far no success but will go back again and look at the wire connections, what does the seatalk get me here? Is it a replacement for the 0183?
By the way, I do have one network slot available in the back of the mfd.

Compared to other resources, your help has been quite valuable.