Munich is the place to start. The 1st eve just head to the city center, 'Platz' & the 'HB' house. The next day maybe visit Dachau the on to the Southern border area with Austria. Be sure to get the 'window sticker' if you plan to drive into Austria, 120 Euro fine if not. Rothenburg is nice if you are driving by.
Look at 'Trip Adviser' for details & reviews about all possible attractions.