disclaimer: nothing in this post, nor the comments on it, are legal advice
I wanna get in to some nitty gritty here about informing an officer of your weapon during a traffic stop. Particularly your opinions on a few matters:
1) assuming you are NOT In a duty to inform state, do you inform? In some circumstances, informing can lead to unintended consequences, such as "Terry searches" or having a rookie police officer over react to the knowledge that you are armed. But if the officer somehow Discovers the weapon those consequences could become ten times worse.
2) If you are in a DTI state, don't you think your constitutional rights are being violated? Simply by exercising your 2A right, you are surrendering your 4A rights, according to Terry v. Ohio
3) pretend for a moment that you keep your firearm in the glove compartment. (Please don't respond with "I would never Keep it there" it's a thought experiment, so just go with it) and the officer asks for a document required, which also happens to be in the glove compartment. (Again, just pretend you aren't Smart enough to have pulled it out before the officer got to your window) What do you do there? Even if you are not required to inform, that seems like a quick way to either get a bunch of new holes in your body, or at the very least to end up face down on the asphalt.