Extra Power Feed Through Post?

[HoveringHMMWV]

I have seen a few trucks on GovPlanet that have the multi stud power bus connected to a feed through post (usually covered in silicone). But I am also seeing what looks like a second feed through post next to it or even aft of the shunt. Does anyone know what it is for or what accessory might usually be connected to it? I was able to find the feed through in the TM's but they don't show multiples together.
Thank you,
- HoveringHMMWV

 

[86humv]

Some field mod...see where it connects on other side..

 

[Retiredwarhorses]

That’s an additional ground stud, you will find it wired with a massive ground cable in the 400amp equipped trucks, it runs to the 400amp generator ground stud.
Its just a stud on a 200amp truck. I guess AMG a figured out that while they added a bunch of positive tie point, they forgot they should have negative too.