I do not think this is a tail light year issue as those are not the things that are different with the two types of tail light. Also, wires do not go bad unless someone has had at them. The brake pedal switch seems fine (3rd light) but the fogs you see lighting are not brake lights. So you really have the problem at the brake lights and parking lights. You need a meter to probe for 12V at each light. Then clean the bulb holders and grounds. It is not hard to trace the circuit to see where 12V disappears.