My new car arrives in late May. My daughter has been asking if she'll be able to watch DVD movies like she does in my present car. This got me to thinking -- is it possible to DVDs on the factory Navigation screen, or is there an aftermarket mod available, or am I stuck buying one of those funky Audiovox units that hang on the seats? Also, is there any easy way to integtrate the auido? I hate those FM modulators.