Anyone know what the connector on the HK radio is called?

[Dennis The Menace]

I dont want to buy the whole cabling harness assembly to connect to the "Ultra" port on the back of the HK radio.  I want to find just the connector plug and pins, so I can wire in my headset only.  Dont need all the rest of the Ultra functions.

Anyone know what the connector plug is called, who makes it, and how I can get one with going to HD and getting the whole harness?

TIA

menace