Yes. If you have a concealed firearm permit from any state, there is no restrictions on how you carry in your vehicle. (As long as it is not in your hand, pointed at somebody because they asked you for Grey Poupon.) :P
The only requirement is this. If you are stopped by Johnny Law in your vehicle, and you are a permit holder and have a concealed firearm, you must inform the officer that you are a lawful permit holder and have a concealed firearm in your possession.