pioneersubuy...you seem to know alot...but you are way too confusing..........keep it simple....
1.WHAT DO I NEED TO DO TO ADD NAVIGATION?
2. AFTER I HAVE ADDED NAVIGATION, WILL I BE ABLE TO ADD DVD PLAYING ABILITY?
I really want to just upgrade to navigation...but if dvd is also possible, that would be nice...all of that WITHOUT changing the OEM screen..