Where are the aviation threads?

There aren't any I'm afraid. Just like there aren't for On the road and most On the trail devices.

You could try the FAQ knowledge base 24/7 here: https://support.garmin.com/support/searchSupport/search.htm

If you prefer to email product support or speak to someone live on the phone, you can find contact info and hours here: http://www.garmin.com/us/support/contact

There are also market-specific Facebook pages and Twitter accounts

Garmin on Facebook and Twitter
Garmin Fitness on Facebook and Twitter
Garmin Outdoor on Facebook and Twitter
Garmin Fish & Hunt on Facebook and Twitter
Garmin Marine on Facebook and Twitter
Garmin Aviation on Facebook and Twitter

Ok, sometimes a long shot pays off............

I just updated just the Navigation Database and firmware version on my 695
Now when I turn it on the start screen lists the new Nav database, but also says chart data missing in yellow text, is this because I didn't update the obstacle database? (the existing obstacle base listing is also now yellow text, changed from the usual White text)

Any help or advice appreciated

Also, no Automotive or Marine forums. This forum is for wearable devices, outdoor recreation and sports & fitness devices, and associated software.

You could request it here - Share Ideas | Garmin