Have a firearms question for people that live in Tennessee, Georgia, Kentucky and Ohio

I'll be travelling from Florida to Ohio later this year. I'd like to take my handgun with me but reading through all these statutes is mind numbing. Can residents of the above states give me a quick run down of the laws regarding firearms in vehicles and general CCW laws? I have a CCW from Florida, and my CCW is recognized in all the above states. Thanks via /r/CCW http://ift.tt/2xLgHG0