Hi Stan. Here's a solution that worked for another user:
"To get the phone out of Car-Kit mode you have to get a small piece of aluminum foil, fold it up so it is about 1/2 inch wide, then insert one end into the charge jack on the bottom of the phone. Let the foil come into contact with the two little pins in there. You may to wiggle it a bit to make this happen. The foil will cause a small short to occur and Car-Kit will go away." source
Let me know if it works for you as well.