I wasn't referring to firearms or really anything specific . I just know that you have a lot of the same protections in your vehicle that you would in your residence , but I'm sure there are some exclusions and I have never seen any actual legal language that specifies vehicles .
The circumstances under which a cop can search your vehicle are lot more vast than your home. I think they are basically the same for the expectation of safety and security in your home, but not privacy. That is how it was explained to me.