State tax filing

As a PA resident, you are also required to file and pay your home municipality's local earned income tax if you have W2 or self employment income.  I'm not sure what you mean by "insurance purposes"  but I hope you are truthful as to the principle place you vehicle is garaged to avoid insurance fraud.  As a proclaimed PA resident, PA has the right to tax ALL your income, regardless of where earned.
Maybe you should begin to look into KY residency!