Brutus (9 weeks) hates riding in the car. He whines and pants and barks the whole time. I try to take him for 15 minute rides once or twice a week all the while praising him and reassuring him that everything is okay but it spent seem to be getting better. Should I take him more often? I don't want to overly stress him but I'm really lost... I want him to enjoy our car rides together. Suggestions?