I have a question for those that have Nav in their TCH. Lets say you are going on a 500 mile trip and you are using the Nav to get you there. At some point you will have to make a stop (bathroom break or food break) which will require you to shut off the car. When you restart the car does the Nav guidance automatically restart or is there something you have to do to resume guidance?

Also does the Nav allow you to add 'stops' to your route? So lets say on your 500 mile trip there is somewhere along the way you know you want to stop. Can you add that stop in so it guides you there and then when you are done it will guide you to your final destination?