Trailer Plug

[jimm1009]

It seems that the trailer plugs for the 2.5 ton, 5 ton, M38, and others use the same 12 pin plug. There are 10 wires installed and 2 pins that are installed but the rubber insulator is not drilled for them.
Does any know of a 12 pin plug like this that actually uses all 12 pins or at least has the capability of.
I have rewired about 60% of my M35A2 starting in the rear and I have added 4 circuits for my 105 trailer but I can't use all 12 pins.
I do not want to eliminate the Blackout Brake and Tail in case I want the trailer to look and function all the way around. One of the circuits is adding MRAP reverse lights to the truck and trailer both.
I have not opened up or removed the rubber insulator from the plug yet. I guess in theory since the pins are there they probably could be used with some extra work.
Thoughts?
Suggestions?
Thank you,
jimm1009

 

[jimm1009]

Below is a link for information only. Perhaps the military has the vendor plug two holes with a sealant. The same part number plug here has all holes drilled in the rubber insulator and of course all 12 pins are installed.
Guess I will pull mine apart and see if the holes are drilled and sealed or if they are not drilled at all.
jimm1009

MS75021-2 Vehicle Trailer Receptacle 12 Pin Female Socket HUMVEE NATO BRASS PLUG

Made in USA - NEW! Vehicle's trailer receptacle - This is part of the military VEHICLE - NOT THE TRAILER. Complete with back shell and grommet as shown. Solder cups for wire connection. p/n MS75021-2, alternate numbers 60-036030-51S, 8376209, 2...

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