Hi Guys, I'm wondering if anyone can help.

I have just bought a 2015 (64) A3. It didn't come with a sat nav sd card so i have purchased one on ebay 8VO919866B. I have popped it in the SD slot but can't get nav on. Do i have the right card? or do i maybe need to update my firmware as i am on MSTD_EU_AU_P3151

Any help would be appreciated

Thanks