For whatever reason, the car decided it now wants a DVD in the nav unit. Not sure why, it's been content for the past 3 years and I never use it. Now, every time I enter the car the nav screen pops up. I've purchased two Volvo DVDs from eBay for a 2007-14 XC90, but both ended up being non-genuine and did not work.

Does anyone have a DVD know to work in their 2009-2011 Vantage? It can be from Aston or Volvo, just as long as it works. I'm trying to determine whether the nav unit requires replacement.