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You probably understand then how annoying this can be after a few years...
They do, it's called a GPC/TSU.
Anything is possible if you are technically proficient - but like the realtor luxury item saying "if you have to ask, you probably..."
Probably not a good hobby if you have zero...
In summary, early HMMWV control boxes had a nasty problem with contact corrosion and water ingress under the hood. They are a replacement part when they fail - not worth it to repair (both in time and money).
Acronyms are shorhand, if you learn them it'll speed up conversation:
BOX = a 6-sided...