Couldn't come up with a link to the actual code, but this should answer your question.
May I carry a firearm in my vehicle without a concealed weapons permit?
You may carry a firearm in your vehicle inside the city limits or confines of a city, as long as it is in plain view, loaded or unloaded. But if you are going to conceal it, the firearm must be disassembled or unloaded. This site may also provide some useful information:
If you are outside the city limits or confines of a city, and, if you are hunting, fishing, trapping or some other lawful outdoor activity, you are not required to have a concealed weapons permit.